Question

Five spheres of masses 1,2,3,4,5 kg are moving along a straight line in the same direction with velocities 5,4,3,2,1 m/s respectively. The first sphere collides with the second and both stick together. The compound mass collides with the third sphere and so on. The velocity of compound mass when all stick together is

Answer 1

Explanation:

The velocity of the compound is...?

Answer 2

Answer:

V=7/3 m/s

Explanation:

using conservation of momentum,

5*1 + 4*2 + 3*3 +2*4 +1*5 = (1+2+3+4+5)V

5+8+9+8+5= 15V

35=15V

V=7/3 m/s