Question

1)
A marble of mass ‘m' is dropped from a height 'h' on a hard floor. If it rebounds to the same height, the
change in momentum of marble is
[ ]
a) m 2gh in downward direction
b) m 2gh in upward direction
c) 2m 12gh in downward direction
d) 2m 2gh in upward direction

Please answer


2)
A force F, acting on a 2 kg body produces an acceleration of 2.5 ms - 2. Another force F, acting on a
Induces an acceleration of 2 ms - 2. The forces F1, and F2, are
[ ] a)5N,10N
b) 10N,5N
c) 1N,2N
d)2N, 1N​

Answer 1

Answer:

1) Option D

2) Option A

Hope it helps you ✌️✌️