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- 1. A bus moves 150 m due North, then 100 m due South. What are the bus total distance and displacement?1. An ant on a picnic table travels 30 cm eastward, then 25 cm northward, and finally 15 cm westward. What is the magnitude of the ant's displacement relative to its original position?2. For the winter, a duck flies 10.0 m/s due south against a gust of wind with a speed of 2.5 m/s. What is the resultant velocity of the duck?1. A bus moves 150 m due North, then 100 m due South. What are the bus total distance and displacement? Using speed and velocity
- 1. It takes you 10 min to walk with an average velocity of 2 m/s to The North from The Grocery Shop to your house. What is your displacement?2. For the winter, a duck flies 10.0 m/s due south against a gust of wind with a speed of 2.5 m/s. What is the resultant velocity of the duck?complete solution 1. What is the magnitude of the displacement of a car that travels 7.6 mi east and then 8.9 mi north? One mile is 1609.34 meters. 2. A car that travels at 8.9 km/hr for 2.0 hrs, at 3.6 km/hr for 1.0 hr and at 2 km/hr for half an hour. What is its average speed? 3. If the ball was kicked from ground gaining a velocity of 87 m/s at 5.9 degrees from the horizontal. Find the velocity of the ball when it reached maximum height. Select one: a. 86.5391 m/s b. 8.9430 m/s c. 9.81 m/s d. 0 m/s 4. In a construction site, a heavy hollow block falls down from a height of 63m above the ground. Unfortunately, there is a man 6ft height tall right below the incident. As to what maximum time should the man react as to safely move away from the falling block?1m = 3.2808ft 5. A hiker goes 6 km, 67 degrees east of north then changes direction and goes 5 km, 34 degrees west of north. How far is he from the starting point?
- 4. You drive for 30 min for 30 km east and then another 30 min for 40 km north. The magnitude of your average velocity for the entire trip is A. 40 km/h. B. 50 km/h. C. 60 km/h. D) 70 km/h. E. 80 km/h.10. A particle moves along a straight line with an acceleration of a = 5/(3s3 + s32) m/s, where s is in meters. Determine the particle's velocity when s = 2 m, if it starts from rest when s 1 m. Use a numerical method to evaluate the integral. Ans. v= 1.29 m/s1. As you walk to class with a constant speed of 1.75 m/s, you are moving in a direction that is 18.0° north of east. How much time does it take to change your displacement by (a) 20.0 m east(b) 30.0 m north? Draw a diagram please!! 2. A racket ball is struck in such a way that it leaves the racket with a speed of 4.87 m/s in the horizontal direction. When the ball hits the court, it is a horizontal distance of 1.95 m from theracket. Find the height of the racket ball when it left the racket. Draw a diagram please!! 3. In a grocery store, you push a 12.3-kg shopping cart with a force of 10.1 N. If the cart starts at rest, how far does it move in 2.50 s? Draw a diagram please!!
- 6. A car starts from rest and accelerates at a rate of 1.8 m/s² West for 15s. It goes at a constant velocity for 50s and then accelerates at a rate of 2.1m/s² East for 10 s. Use West as the positive direction. a. Draw an acceleration graph for this situation. Remember to quantitatively label your axes. a (m/812) t(s) 0-15 15-65 65-75 b. What is the change in velocity for each time interval? Av (m/s) t(s) Draw a velocity graph for this situation. Remember to quantitatively label your axes. v (m/s) E t(s) d. What is the total displacement between t-Os and t= 75 s?2. A ball is thrown vertically from the ground with a velocity of 30 m/s. e. When is the displacement of the ball zero?f. When is the magnitude of the ball’s velocity equal to half its velocity when thrown?g. When is the magnitude of the ball’s displacement equal to half the greatest height to which it rises?h. What are the magnitude and direction of the acceleration while the ball is moving upward?i. While moving downward?j. When at the highest point?1. You are driving at 8.00 m/s south. You accelerate uniformly at 1.10 m/s? north for 5.00 seconds. How fast are you going at the end of the 5.00 seconds? What is your displacement?