Question

If a force of 5 Newton acts on a body for 2 microseconds .Calculate the Impulse if mass of the body is 2.5 kg. Calculate the change of the velocity ?

Answer 1

Answer:

Δv  = 0.4 x10∧-5           &            I = 2 x10∧-5 Ns

Explanation:

F = 5 N     &      m = 2.5 kg       &             t = 2 x10∧-6 s

F = ΔP / Δt ⇒  F = mΔv / Δt  ⇒Δv = Fx Δt / m

⇒ Δv = 5x2 x10∧-6 / 2.5 = 0.4 x10∧-5

I = F x Δt

I = 5 x 2 x10∧-6

I = 2 x10∧-5 Ns