Question

A force of 10 Newton acts on a body of mass 20 kg for 10 seconds. Change in its momentum is

• A. 5 kgm/s
• B. 100 kgm/s
• C. 200 kgm/s
• D. 1000 kgm/s

Answer 1

Answer: (B)

100 kgm/s

Answer 2

Change in momentum

$= \text{force} \times \text{time} = 10 \times 10 = 100kgm/\sec$