Two forces act on a 4.5−kg block at rest on a rough level surface as s

Question

Notify Me Bookmark

Two forces act on a 4.5−kg block at rest on a rough level surface as shown. The coefficient of kinetic friction is μc = 0.02. The block moves 20 m from its initial position. (a) Find the work done by FN (the normal force). (4 points) (b) Find the work done by the frictional force. (4 points) (c). Find the net work done on the block. (4 points) (d) Use the Work-Energy Theorem to find the final velocity of the block. (3 points)

Image text

Q7. Two forces act on a

4.5 - k g

block at rest on a rough level surface as shown. The coefficient of kinetic friction is

μ_{c} = 0.02

. The block moves

20 m

from its initial position. (a) Find the work done by

F_{y V}

(the normal force). (4 points) (b) Find the work done by the frictional force. (4 points) (c). Find the net work done on the block. (4 points) (d) Use the Work-Energy Theorem to find the final velocity of the block. (3 points)