College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Transcribed Image Text:A ball rolls at a speed of 1.8 m/s on a surface. If the coefficient of kinetic friction
between the ball and the surface is 0.38, what is distance travelled by the ball
before it comes to a stop?
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- A hockey puck ( mass 160 grams ) slides across the ice. It's initial velocity is 10 m/s. If the coefficient of kinetic friction between the puck and the ice is 0.05, how far will it slide before it stops?arrow_forwardA 25 kg child sits in the middle of a frozen, frictionless pond of radius 15 m with their 11 kg dog. In order to make it off the pond, the child pushes off of the dog. The dog then travels at a velocity of 14 m/s. What is the speed and direction of the child? How long does it take the child to make it to the edge of the pond? How long does it take the dog to make it to the edge of the pond?arrow_forwardIn deep space, an astronaut is whipping a heavy tool around in a circle by a taut cable. The cable is 1 meter long (from the astronaut's fist to the tool), and the tool makes a full trip around the circle in half a second as it moves with constant speed. The mass of the tool is 10 kg. What is the tension in the cable?arrow_forward
- The strings and frictionless pulleys have negligible masses. The coefficients of kinetic friction is 0.25 and static friction is 0.30. Block A has a mass of 3 kg and block B has a mass of 4 kg. a) What is the maximum mass block C can have before block B will start to move? b) If block C has a mass of 7 kg and was 1 m above the ground, how long would it take block C to hit the ground starting from rest?arrow_forwardA car driving on level ground at 20.0 m/s slams on its brakes and skids to a halt. If the coefficient of kinetic friction between the car's tires and the road is 0.750, how far does the car skid before stopping? How far would the car have skid if it had been going 40.0 m/s?arrow_forwardIf the coefficient of kinetic friction between the 50-kg crate and the ground is mk = 0.3, determine the distance the crate travels and its velocity when t = 3 s.The crate starts from rest, and P = 200 N.arrow_forward
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