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- You are driving a car at a constant speed of 14.0 m/s along a straight level road. As you approach anintersection, the stoplight turns red and you slam on breaks and the wheels lock and you skid to a stop in25.0 m. What is the coefficient of kinetic friction between your tires and the road?A crate starts from rest and slides 8.05 m down a ramp. When it reaches the bottom it is traveling at a speed of 5.55 m/s. If the ramp makes an angle of 23.0o with the horizontal, what is the coefficient of friction between the crate and the ramp?A cart coasts at a constant speed of 18.0m/s down a flat inclined road that makes an angle of 3.1° with the horizontal. What is the coefficient of friction between the cart and the road?
- A person slides a bottle with mass 0.20 kg along a level table. It leaves his hand at 2.8 m/s and comes to a halt after going 1.0 m. Find the coefficient of kinetic friction between the bottle and the table.While coasting a level section of the track, the speed of a 750kg bobsled decreases from 35m/s to 30m/s over a distance of 100m. Find the coefficient of kinetic friction between the bobsled and the icy track.A block with a mass of 3.44 kg is sliding down an inclined surface. The surface makes an angle of 31.7º relative to horizontal. The block is increasing speed at a rate of 2.1 m/s2. What is the coefficient of kinetic friction between the block and the surface?
- A 75−kg box is pulled over a rough surface using a horizontal force of 100N at a constant velocity. Find the coefficient of friction between the box and the surface?A box with a mass of 0.5 slugs lies on an inclined plane making an angle of 30o with the horizontal. If the coefficient of kinetic friction between the box and the plane is 0.4, what is the magnitude of the force that must be applied parallel to the incline to keep the box moving down the incline at a constant speed?A 3.11kg mass is initially at rest on a 55.3 degree incline. An applied force of48.4 N directed up the incline acts and the mass accelerates up the incline at a rate of 2.98m/s^2.what is the coefficient of the kinetic friction?
- A box on a rough floor is pulled with a force of 1000N along a rope that creates an angel 25° above the horizon. The coefficient of friction is 0.40. If the box accelerates at a rate of 5m/s^2, what is the mass of the box?A child has mass 6.0 kg and slides down a 35°incline with constant speed under the action of a 34-N force acting up and parallel to the incline. What is the coefficient of kinetic friction between the child and the surface of the incline?A box with a mass of 8.80 kg slides up a ramp inclined at an angle of 28.3° with the horizontal. The initial speed is 1.70 m/s and the coefficient of kinetic friction between the block and the ramp is 0.46. Determine the distance (in m) the block slides before coming to rest. Answer in Meters.