A. A lead bullet strikes a wooden block with velocity of 500m/s and bullet falls dead. Calculate the rise in temperature of bullet assuming that 40% of the heat
produced is used in heating the bullet. [ sp. Heat of lead is 0.03cal/g °C)

Auniform brick of length 25 m is placed overthe edge of a horizontal surface with a maximum overhang of 12.5 m attained withouttipping. now two identical uniform bricks of length25 m are stacked over the edge of a horizontalsurface. what maximum overhang is possible forthe two bricks (without tipping)? answer in units of m.