Classical Dynamics of Particles and Systems
5th Edition
ISBN: 9780534408961
Author: Stephen T. Thornton, Jerry B. Marion
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 2, Problem 2.6P
In the blizzard of ’88, a rancher was forced to drop hay bales from an airplane to feed her cattle. The plane flew horizontally at 160 km/hr and dropped the bales from a height of 80 m above the flat range, (a) She wanted the bales of hay to land 30 m behind the cattle so as to not hit them. Where should she push the bales out of the airplane? (b) To not hit the cattle, what is the largest time error she could make while pushing the bales out of the airplane? Ignore air resistance.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
If there is a person on a cliff that is 200m above the beach and launches a ball from a cannon at 45 degrees to a person, how far is that person from the base of the cliff? The velocity of the muzzle is 50m/s and friction can be ignored.
Consider the following statement: When a rifle is fired horizontally, the bullet leaves the barrel and doesn't drop at all for the first 75 meters of flight. Is this statement true?
Vox = Vo
Vay =a
4. Chased by assassins, Jason Bourne makes a daring
motorcycle leap from the (flat, level) top of a parking
garage, to the roof of an office building which is 2.50
m lower, and 19.50 m away. Assume he drives off the
garage horizontally, and there is no air friction. If he
launches with a speed v= 27.4 m/s:
(a) Will he land on the roof (blue path), or hit the side
of the building (red path)? Support your answer
with a calculation.
(b) Based on your results from part (a), find the components of his velocity at the moment
that he hits the building.
(fc
2.50m
In
b.29
garage
us
19.50m
buildigg
(drawing is
not to
scale!)
Chapter 2 Solutions
Classical Dynamics of Particles and Systems
Ch. 2 - Prob. 2.1PCh. 2 - Prob. 2.2PCh. 2 - If a projectile is fired from the origin of the...Ch. 2 - A clown is juggling four balls simultaneously....Ch. 2 - A jet fighter pilot knows he is able to withstand...Ch. 2 -
In the blizzard of ’88, a rancher was forced to...Ch. 2 - Prob. 2.7PCh. 2 - A projectile is fired with a velocity 0 such that...Ch. 2 - Consider a projectile fired vertically in a...Ch. 2 - Prob. 2.11P
Ch. 2 - A particle is projected vertically upward in a...Ch. 2 -
A particle moves in a medium under the influence...Ch. 2 - A projectile is fired with initial speed 0 at an...Ch. 2 -
A particle of mass m slides down an inclined...Ch. 2 - A particle is projected with an initial velocity 0...Ch. 2 - A strong softball player smacks the ball at a...Ch. 2 - Prob. 2.19PCh. 2 - A gun fires a projectile of mass 10 kg of the type...Ch. 2 - Prob. 2.21PCh. 2 - Prob. 2.22PCh. 2 - A skier weighing 90 kg starts from rest down a...Ch. 2 - A block of mass m = 1.62 kg slides down a...Ch. 2 - A child slides a block of mass 2 kg along a slick...Ch. 2 - A rope having a total mass of 0.4 kg and total...Ch. 2 - A superball of mass M and a marble of mass m are...Ch. 2 - An automobile driver traveling down an 8% grade...Ch. 2 - A student drops a water-filled balloon from the...Ch. 2 - Prob. 2.31PCh. 2 - Two blocks of unequal mass are connected by a...Ch. 2 - A particle is released from rest (y = 0) and falls...Ch. 2 - Perform the numerical calculations of Example 2.7...Ch. 2 - Prob. 2.36PCh. 2 - A particle of mass m has speed υ = α/x, where x is...Ch. 2 - The speed of a particle of mass m varies with the...Ch. 2 - A boat with initial speed υ0 is launched on a...Ch. 2 - A train moves along the tracks at a constant speed...Ch. 2 - Prob. 2.42PCh. 2 - Prob. 2.45PCh. 2 - Prob. 2.46PCh. 2 - Consider a particle moving in the region x > 0...Ch. 2 - Prob. 2.48PCh. 2 - Prob. 2.49PCh. 2 - According to special relativity, a particle of...Ch. 2 - Let us make the (unrealistic) assumption that a...Ch. 2 - A particle of mass m moving in one dimension has...Ch. 2 - A potato of mass 0.5 kg moves under Earth’s...Ch. 2 - Prob. 2.55P
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- MY NOTES ASK YOUR TEACHER A polka-dotted bowling ball is thrown horizontally off a cliff at 45 m/s. It takes 3.2 s for the polka-dotted bowling ball to hit the ground. Determine how far from the base of the cliff t will hit and how high the cliff is. Ignore air drag. distance impact is from base of cliff- height of cliff-[arrow_forwardYou are in a plane that flies horizontally with speed 900 km/h ( 250 m/s) when an engine falls off. Neglecting air drag, assume it takes 25 seconds for the engine to hit the ground. (a) How high was the plane flying? (b) What is the horizontal distance that the engine covers before hitting the ground? (c) If the plane somehow continuous to fly as if nothing had happened, where is the engine relative to the airplane at the moment the engine hits the ground?arrow_forwardA golf ball with an initial speed of 50.0 m/s lands exactly 240 m downrange on a level course, (a) Neglecting air friction, what two projection angles would achieve this result? (b) What is the maximum height reached by the ball, using the two angles determined in part (a)?arrow_forward
- One boy standing on a bridge throws a stone horizontally at a velocity of 12m/s. If the bridge is 10m above the river, how far horizontally will the stone go from him?arrow_forwardWhat will be the speed of an airplane that normally flies at 200 km/h when it encounters a 80-km/h wind from the side (at a right angle to the airplane).arrow_forwardBased on a grade 11 physics student, answer the following question: A poké-ball rolls off Ash’s table with a velocity of 1.93 m/s [horizontally]. The tabletop is 76.5 cm above the floor. If air resistance is negligible, determine how long the poké-ball is airborne the horizontal range (distance) the velocity at impactarrow_forward
- An airplane is dropping bales of hay to cattle stranded in a blizzard on the Great Plains. The pilot releases the bales at 150 m above the level ground when the plane is flying at 75 m>s in a direction 55° above the horizontal. How far in front of the cattle should the pilot release the hay so that the bales land at the point where the cattle are stranded?arrow_forwardA catapult launches a large stone from ground level at a speed of 45.0 m/s at an angle of 55.0° with the horizontal. The stone returns to ground level shortly thereafter, (a) How long is it in the air? (b) What maximum height does the stone reach? (Neglect, air friction.) (See Section 3.4.)arrow_forwardThe muzzle velocity of the bug guns on a battleship is 850 m/s when firing a certain mass shell. If the gun is fired at an angle of 40 degrees above the horizontal, how far will the shell travel? Neglect air resistance.arrow_forward
- If a baseball is hit with a vertical speed of 30 m/s and a horizontal speed of 2 m/s, how long will the ball remain in the air? (Assume for the purposes of this question that the ball starts at nearly ground level.) How far will it go?arrow_forwardA high-speed dart is shot from top of a building with a speed of 150 m/s horizontally. What is the horizontal component of its velocity after 5.0 s if air resistance is neglected?arrow_forwardIn a carnival booth, you win a stuffed giraffe if you toss a quarter into a small dish. The dish is on a shelf above the point where the quarter leaves your hand and is a horizontal distance of 2.1 m from this point. If you toss the coin with a velocity of 6.4 m/s at an angle of 60° above the horizontal, the coin lands in the dish. You can ignore air resistance,a) What is the height of the shelf above the point where the quarter leaves your hand? b) What is the vertical component of the velocity of the quarter just before it lands in the dish?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Classical Dynamics of Particles and SystemsPhysicsISBN:9780534408961Author:Stephen T. Thornton, Jerry B. MarionPublisher:Cengage Learning
Classical Dynamics of Particles and Systems
Physics
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Cengage Learning
Kinematics Part 3: Projectile Motion; Author: Professor Dave explains;https://www.youtube.com/watch?v=aY8z2qO44WA;License: Standard YouTube License, CC-BY