Two blocks of 5 kg and 2 kg sit side by side on a frictionless floor. A horizontal force of 80 N pushes on the 5 kg block, which pushes the other one. Find the force Fc that the first block exerts on the second.
A 2 kg crate is pushed across a floor with a horizontal force of 25 N. The coefficient of kinetic friction is 0.3. Use g = 9.81 m/s². Find the acceleration a of the crate.
A 10 kg block slides down a slope at 35° to the horizontal. The coefficient of kinetic friction is 0.15. Use g = 9.81 m/s². Find the acceleration a of the block along the slope.
A 16 kg block slides down a slope at 20° to the horizontal. The coefficient of kinetic friction is 0.25. Use g = 9.81 m/s². Find the acceleration a of the block along the slope.
Two blocks on a level floor are joined by a light horizontal string. A horizontal force of 110 N pulls the front 3 kg block; the 10 kg block is towed behind. The coefficient of kinetic friction is 0.2 for both blocks. Use g = 9.81 m/s². Find the tension T in the connecting string.
A block is given a push so that it starts sliding up a ramp at 15° with a speed of 8 m/s. The coefficient of kinetic friction is 0.2. Use g = 9.81 m/s². How far d along the ramp does it slide before it stops?
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