A1-kg chunk of putty moving at 1 m/s collides with and sticks to a 5-kg bowling ball initially at rest. the bowling ball and putty then move with a momentum of
a) 0 kg m/s.
b) 1 kg m/s.
c) 2 kg m/s.
d) 5 kg m/s.
e) more than 5 kg m/s.

B) 1 kg m/s.

Explanation:

A 1-kg chunk of putty moving at 1 m/s collides with and sticks to a 5-kg bowling ball initially at rest. The bowling ball and putty then move with a momentum of

A) 0 kg m/s.

B) 1 kg m/s.

C) 2 kg m/s.

D) 5 kg m/s.

E) more than 5 kg m/s.

From the principle of momentum which states that, in a system of colliding bodies, the total momentum before collision must be equal to the total momentum after collision.

m1u1+m2u2=(m1+m2)V

since the collision is inelastic

1*1+5*0=momentum after collision

1kgm/s =momentum after the impact

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s