Question

This is a two part question: What is the force of friction acting on a 100 kg steel slab at rest on a steel floor?

None of the above
725.94N
559.2N
0N
A 5.5kg bowling ball is going down the lane at constant velocity of 30 m/s.What is the net force acting on the bowling ball?
165N
55N
30N
ON

Answer 1

1) 0N... friction opposes the motion of an object, since the block is at rest there is no motion thus no friction

2) F=ma
= (5.5kg)(30m/s)
=165 N