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A 425 g shuffleboard disk is given an initial speed of 3.20 m/s across a horizontal...
A box of mass m starts sliding across a horizontal table with some initial speed. It slides distance d before coming to rest. The coefficient of kinetic friction between the table and the box is μk. Use Newton’s laws and kinematics equations to find the initial velocity of the box. Express your answer in terms of the given parameters. Solve the same problem using work and energy theorem. Do these two approaches give the same answer? What assumptions did you...
A book slides across a level, carpeted floor with an initial speed of 4.05 m/s and comes to rest after 3.25 m. Calculate the coefficient of kinetic friction ?k between the book and the carpet. Assume the only forces acting on the book are friction, weight, and the normal force. ?=
A hockey puck is sliding across a frozen pond with an initial speed of 5.3 m/s. It comes to rest after sliding a distance of 11.6 m. What is the coefficient of kinetic friction between the puck and the ice?
Two bicycle tires are set rolling with the same initial speed of 3.20 m/s along a long, straight road, and the distance each travels before its speed is reduced by half is measured. One tire is inflated to a pressure of 40 psi and goes a distance of 18.3 m ; the other is at 105 psi and goes a distance of 93.1 m . Assume that the net horizontal force is due to rolling friction only and take the...
A book slides with initial speed 1.60 m/s across a horizontal table. If it slows to a stop in 0.60 m, what is the coefficient of kinetic friction with the table? Ignore air resistance and assume the acceleration due to gravity is g= 9.8 m/s2.
Question 5.2a: A 1350-kg car is traveling with an initial speed of 26.0 m/s. Determine the car's speed after ?2.15 ? 105 J of net work is done on the car. m/s Question 5.2b: A 11.6-kg box is sliding across a horizontal floor. It has an initial speed of 1.40 m/s and the only force acting on it is kinetic friction with magnitude fk = 3.00 N. Determine the distance the box will travel before coming to rest. m
A 5 kg block slides across a horizontal surface with an initial speed of 8.5 m/s. The coefficient of static friction between the block and the surface is 0.78. What is the increase in thermal energy of the block and its surroundings after it comes to rest?
A 1.0 kg block is in motion up a ramp inclined at 40° to the horizontal with an initial speed of 4.0 m / s. The block comes to rest after traveling d=0.84 mastraight along the ramp. (a) Determine the force of friction acting on the block. (b) What was the coefficient of kinetic friction between the block and ramp? (c) How much work was done by the normal force?
A crate is given initial speed 3 m/s up along incline plane creating 25° with horizontal. Coefficient of kinetic friction between crate and incline µ=0.17. a) Draw the free body diagram for the crate moving up the incline. Specify all forces acting on the crate. b) Find acceleration of crate on its way up. c) Find time which it takes for crate to come to stop.
A crate is given initial speed 3 m/s up along incline plane creating 25 degree with horizontal. Coefficient of kinetic friction between crate and incline = 0.17 a) draw the free body diagram for the crate moving up along the incline. specify all the force acting on the crate b) find acceleration of crate on its way up c) find time which it take for crate to come to stop.