Question

A block has a mass of 50 kg. There is a coefficient of

kinetic friction of 0.4 between the block and the
floor. If you are dragging the block across the floor,
and the block is moving with a constant velocity, how
much force are you using to pull the block?
O 100.0 N
O Not enough information to tell
490.0 N
O 196.2 N

Answer 1

196.2 N

Step-by-step explanation:

F = μN

μ = 0.4

N = mg = (50 kg)(9.81 m/s²) = 490.5 N

F = (0.4)(490.5 N) ≈ 196.2 N