Question

Adise of mass 10 gram is kept floating horizontally In Air by firing bullets each of mass 5 gram with the same velocity , with the rate of 10 bullets per second the bullets Rebound with the same speed in Positive directions. the velocity of each Bullet at the time of impacts is​

Answer 1

Answer:

1m/s

Explanation:

so impulse of bullet on mass is 5/1000(2v) { since velocity of striking and rebounding is same}. Now force is impulse per unit time.So, impulse per unit time = 10× 5/1000(2v). And this is equal to weight of block which is 10g/1000 {considering body is vertical}