Question
A force of 250 N acts on a body and the momentum acquired is 125 kg m/s. What is the time for which the force acts on the body?
- 0.2 s
- 0.5 s
- 0.4 s
- 0.25 s
Answer
0.5
Explanation
The formula for calculating the momentum acquired by an object due to an applied force is given by:
p = F × t
where p is the momentum acquired, F is the force applied, and t is the time for which the force acts.
We are given that a force of 250 N acts on a body and the momentum acquired is 125 kg m/s. Substituting these values into the above formula, we get:
125 = 250 × t
Solving for t, we get:
t = 125 / 250
t = 0.5 s
