Question
Question: A particle of mass m = 9 × 10<sup>–31</sup> kg moving towards the wall of a vessel at a velocity of ...
A particle of mass m = 9 × 10–31 kg moving towards the wall of a vessel at a velocity of v = 600 ms–1 strikes it at an angle of 60° to the normal and rebounds at the same angle at the same speed. The impulse of the force experienced by the wall during the impact is –
A
3 × 1021 N s
B
9 × 10–28 N s
C
5.4 × 10–28 N s
D
5.4 × 10–27 N s
Answer
5.4 × 10–28 N s
Explanation
Solution
Impulse = change in momentum = 2 mv cosq