Question

Assuming 50% of heat is absorbed by the bullet the increase in temperature in there is

Answer 1

Solution :

                   Since specific heat of lead is given in Joules, hence use

W=Q

instead of

W=JQ

.            Þ

1

2

×(

1

2

m

v

2

)=m.c.Δθ

Þ

Δθ=

v

2

4c

=

(300)

2

4×150

=150

∘

C

.