Laws Of Motion Question 35
Question: If a force of 250 N act on body, the momentum acquired is 125 kg-m/s. What is the period for which force acts on the body [CMEET Bihar 1995]
Options:
A) 0.5 sec
B) 0.2 sec
C) 0.4 sec
D) 0.25 sec
Show Answer
Answer:
Correct Answer: A
Solution:
Change in momentum = Impulse therefore $ \Delta p=F\times \Delta t\Rightarrow \Delta t=\frac{\Delta p}{F}=\frac{125}{250}=0.5\ \sec $
