Question

a hammer is swung so it exerts a 400 N force on a nail. if the hammer and nail are in contact for 0.35 seconds how much impulse does a hammer create? _______ N*s​

Answer 1

Answer:

140Ns

Explanation:

From Newton's 2nd law of motion

F = ma

F = m∆v/t

==> Ft = m∆v

impulse = Ft = 400 × 0.35 = 140Ns