Question

Q.1
A bullet moves with speed v. The temperature of bullet is 20oC . It hits a wall and absorbs 80% of heat energy. The bullet just melts at 220oC . The specific heat of bullet material is 0.5 J/ goC and latent heat of fusion is 22 J / g. The speed of bullet is

1)
600 m/s

2)


3)
552 m/s

4)
3600 m/s

Answer 1

Answer:

552 m/s

Explanation:

See the attachment.