# Problem: A physics student uses a force P of magnitude 70N and angle = 50 degrees (with respect to the horizontal) to push a 5.2 kg block across the ceiling of her room, as shown in the figure to the right. The coefficient of kinetic friction between the block and the ceiling is 0.35.A. Draw a free body diagram of the systemB. What is the magnitude of the block's acceleration?

###### FREE Expert Solution

(a)

The force P acts on the block at 50° above the horizontal.

The weight acts vertically downward.

Friction force acts in a direction parallel to the surface and against the motion.

82% (365 ratings) ###### Problem Details

A physics student uses a force P of magnitude 70N and angle = 50 degrees (with respect to the horizontal) to push a 5.2 kg block across the ceiling of her room, as shown in the figure to the right. The coefficient of kinetic friction between the block and the ceiling is 0.35.

A. Draw a free body diagram of the system

B. What is the magnitude of the block's acceleration?