Suppose you are performing an experiment on a crate of 45-kg tools resting on a horizontal floor. You exert a gradually increasing horizontal push on it and observe that the crate just begins to move when your force exceeds 313 N. After that you must reduce your push to 208 N to keep it moving at a steady 25 cm/s. What is the coefficient of static friction between the crate and the floor?

Q: 5.79 •• Block A in Fig. P5.79 weighs 1.20 N, and block B weighs 3.60 N. The coefficient of kinetic…

A:

Q: An object of mass m is in free fall with the free-fall acceleration of magnitude g. Neglecting the…

A:

Q: At the end of a roller coaster ride, the cars must slow to a stop, but the magnitude of the…

A: Given information: Mass of the car (m) = 2400 kg Maximum allowed acceleration (a) = 1.6 g = 1.6 ×…

Q: A 2000 kg car increases its speed from 2 m/s to 8 m/s in 3s on a rough road, while the engine…

A: Given,  m = 2000 kg  u = 2 m/s  v = 8 m/s  Forward Force F = 6940 N  Now the free body diagram of…

Q: Consider a 25 kg barrel is lifted upwards while hanging to a rope. If the barrel accelerates upwards…

A: Given  Mass of barell m=25 kg  Acceleration of barrel a=6m/s2 Acceleration due to gravity g=9.8 m/s2…

Q: A 12-kg crate rests on a horizontal surface and a boy pushing it with a force that is 30 below the…

A: Given data: The mass of crate is m=12 kg. Angle below horizontal is θ=30°. Coefficient of static…

Q: A car has a mass of 1750 kg. If the driver applies the brakes while on a gravel road, the maximum…

A: Given that the value of mass and velocity and maximum friction force. Then We have to determine the…

Q: A 5 kg box is at rest on a ramp inclined at an angle of 15°. The coefficients of static and kinetic…

A:

Q: Shown below is a 10.0 kg block being pushed by a horizontal force F of magnitude 217.0 N. The…

A: Given that mass of the block and magnitude of horizontal force and also given the coefficient of…

Q: A block sets on a rough (ju), horizontal surtace. When the forces F,= 30 N and F2= 10 N are applied…

A: The coefficient of kinetic friction between the block and the surface is, μk=F2F1=1030=0.33

Q: An object with a mass m slides down a rough 25° inclined plane where the coefficient of kinetic…

A: Given data: The angle of inclination is, θ = 25o The coefficient of kinetic friction is, µk=0.20…

Q: You are pushing a 40 kg sled across some snow with a coefficient of friction of 0.2. How much force…

A: Answer :  The force required to push must be 78.4N .

Q: What is the net horizontal force on a 4kg box pushed to the right by a force of 10 N on a surface…

A: Given data: Mass (m) = 4 kg Force applied (F) = 10 N Coefficient of kinetic friction (μk) = 0.15…

Q: A 9.00-kg hanging object is connected by a light, inextensible cord over a light, frictionless…

A: Free body diagram is,

Q: What horizontally applied force will accelerate a 400-kg crate at 1 m/s2 across a horizontal factory…

A:

Q: A man pulls a 48.0 kg box horizontally from rest while exerting a constant horizontal force,…

A:

Q: A force is applied to an initially stationary block of mass 5.70 kg that sits on a horizontal floor…

A: Given Data: The mass of a block is, m=5.70 kg The applied force on a block is, F=98.9 N The angle…

Q: An impala is an African antelope capable of a remarkable vertical leap. In one recorded leap, a 45…

A:

Q: An example of a force which acts at a distance is O tension weight. static friction. kinetic…

A:

Q: Two blocks, of weights 2.5 N and 5.3 N, are connected by a massless string and slide down a 43°…

A:

Q: The block shown is pulled across the rough horizontal surface at a constant speed by the force…

A:

Q: A block is sliding on a rough surface with a coefficient of static friction = 0.320 and a…

A:

Q: A helicopter (of mass 2000 kg) produces a lift force of 15000 N directed at 70 degrees above the…

A:

Q: A typical car travels a distance of 100 km at 110 km/h. It then repeats the journey at 70 km/h. What…

A: According to question --- Given data --  distance - 100 km. first speed (v1) - 110 km/h. second…

Q: A person is skiing in a horizontal snow surface with a net acceleration of 0.2 meters per second per…

A:

Q: A block sets on a rough (), horizontal surface. When the forces F,= 30 N and F;= 10 N are applied on…

A:

Q: A 30-kg box is being pushed along a horizontal surface. The coefficient of static friction between…

A:

Q: The coefficient of static friction between block A and a horizontal floor is 0.470, and the…

A: At the instant the two blocks start moving, the horizontal component of the net force on each block…

Q: When a mass of body tending to move on a rough surface, a counter-acting force is produced against…

A: Push or pull on an object is considered a force. The SI unit of force is Newton. Force is a vector…

Q: A box rests on a frozen pond, which serves as a frictionless horizontal surface. If a fisherman…

A: Using Newton's 2nd law: F_net = m*a m = mass of box = ? a = acceleration of box  = 3.50 m/s^2 F_net…

Q: A block of mass 105 kg lies on a horizontal plane. A horizontal force F of magnitude 1001 N is…

A: The free-body diagram of the block on the horizontal plane is shown below. Here, m is the mass, F…

Q: A fisherman is fishing from a bridge and is using a "30.0-N test line." In other words, the line…

A: (a) When the line is moving at constant speed, the acceleration and hence the net force on the…

Q: A skier with a mass of 60 kg is sliding down a snowy slope, the slope with an angle of 30 degrees…

A:

Q: A person of weight 480 N stands on a scale in an elevator . What will the scale be reading when the…

A: Given, Weight of person W = 480 N Acceleration a = 4 m/s2

Q: . An art student is designing a funky hanging sculpture in which three identical flying saucer…

A: Given: The maximum tension in the string is 90 N. The string is identical.

Q: body weighing 2 kg was acted upon by a horizontal force of 3 N. What speed will the body acquire in…

A: Given data: Force F= 3N Mass ,m = 2 kg Time t= 5s

Q: A block of mass 3.00 kg is pushed up against a wall by a force P that makes a 50.0° angle with the…

A:

Q: A fisherman is fishing from a bridge and is using a "32.0-N test line." In other words, the line…

A: Write a given value of this question. F=32.0N

Q: Shown below is a 10.0 kg block being pushed by a horizontal force F of magnitude 221.0 N. The…

A: Given:           mass(m) = 10 kg            Force (F) =  221 N           θ = 30°            μ=0.60…

Q: If the coefficient of kinetic friction between a 22-kg crate and the floor is 0.30, what horizontal…

A: Given data: The mass of crate is m=22 kg. The kinetic friction is μ=0.3.

Q: You have gone skiing at the Poconos. You (mass 45 Kg) are being pulled up a 300 snow-covered slope…

A:

Q: A helicopter (of mass 2500 kg) produces a lift force of 18000 N directed at 75 degrees above the…

A:

Q: A block with mass 2500g is pulled by a horizontal rope along a horizontal frictionless surface. If…

A:

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: