Question

41. A 6 kg mass travelling at 2.5 ms - collides
head on with a stationary 4 kg mass. After the
collision the 6 kg mass travels in its original
direction with a speed of 1 ms -. The final
velocity of 4 kg mass is​

Answer 1

Answer:

final velocity = 5.25 m/s

Explanation:

using conservation of momentum

m1u1 + m1v1 = m2u2 + m2v2

6 × 2.5 + 6 × 1 = 4 × 0 + 4 × v2

solving this you will get

4v2 = 21

v2 = 5.25 m/s

Answer 2

Answer:.2.25ms^-1

Explanation:

law of conservation of momentum