Two blocks of 1 kg and 7 kg sit side by side on a frictionless floor. A horizontal force of 40 N pushes on the 1 kg block, which pushes the other one. Find the force Fc that the first block exerts on the second.
A 12 kg crate is pushed across a floor with a horizontal force of 55 N. The coefficient of kinetic friction is 0.15. Use g = 9.81 m/s². Find the acceleration a of the crate.
A box slides across a level floor with an initial speed of 3.5 m/s and comes to rest after 2.1 m. Use g = 9.81 m/s². Find the coefficient of kinetic friction μ.
A 19 kg block slides down a frictionless slope at 45° to the horizontal. Use g = 9.81 m/s². Find the acceleration a of the block along the slope.
A block is given a push so that it starts sliding up a ramp at 20° with a speed of 5 m/s. The coefficient of kinetic friction is 0.15. Use g = 9.81 m/s². How far d along the ramp does it slide before it stops?
A 7.5 kg block on a horizontal table is connected by a light string over a frictionless pulley to a hanging 5 kg mass. The coefficient of kinetic friction between block and table is 0.1. Use g = 9.81 m/s². Find the acceleration a of the system.
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