Answer:
the answer is for the question is B
The force of the sliding friction is 30 N.
P = 227 N
Explanation:
Assuming the crate is on horizontal ground and subject to a horizontal force.
F = ma
P - μmg = ma
P = m(a + μg)
P = m(v²/2s + μg)
P = 50(4²/(2(5))+ 0.3(9.8))
fn /2 .3 'in
50*
