posted by Blessing on .
A lead bullet travelling at 350km/s strikes a target and is brought to rest.What will be the rise in the temperature of the bullet if there is no heat loss to the surrounding
(SHC of Pb is 0.13J/k/kg and melting point of pb=600.5k)
v=350 km/h=350000/3600=97.2 m/s
KE -> Q
ΔT= v²/2c=97.2²/2• 130= 36.3 K