Two blocks of 7 kg and 11 kg sit side by side on a frictionless floor. A horizontal force of 75 N pushes on the 7 kg block, which pushes the other one. Find the force Fc that the first block exerts on the second.
A 16 kg crate is pushed across a floor with a horizontal force of 60 N. The coefficient of kinetic friction is 0.25. Use g = 9.81 m/s². Find the acceleration a of the crate.
A 30 kg box is pushed up a ramp at 35° to the horizontal at constant speed, by a force parallel to the ramp. The coefficient of kinetic friction is 0.15. Use g = 9.81 m/s². Find the pushing force F.
A 25 kg sled is pulled across level snow by a rope at 20° above the horizontal with a force of 100 N. The coefficient of kinetic friction is 0.25. Use g = 9.81 m/s². Find the acceleration a of the sled.
A 1 kg block on a horizontal table is connected by a light string over a frictionless pulley to a hanging 2.5 kg mass. The coefficient of kinetic friction between block and table is 0.2. Use g = 9.81 m/s². Find the tension T in the string.
A 5.5 kg block on a horizontal table is connected by a light string over a frictionless pulley to a hanging 4 kg mass. The table is frictionless. Use g = 9.81 m/s². Find the tension T in the string.
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