A constant force of 5N acts for 5 seconds on a mass of 5kg initially at rest. Calculate the final momentum

Assessment: JAMB UTME - Physics - 2017 Subject: Physics

Question 1 Report

125kgms?1

25kgms?1

15kgms?1

0kgms?1

Answer Details

Impulse = momentum

Impulse = Force (f) × time (t)

Momentum = mass (m) × velocity (v)

? Ft = Final momentum - initial momentum

FT = mv - mu

Since it is initially at rest u = 0

? 5 × 5 = mv ? m(0)

25 = mv

? Final momentum = 25kgms $^{- 1}$

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