1). A 300 g steel ball hangs on a 0.8 m long string. The ballispulled sideway so that the string is at 75 degree angle ,thenreleased. At the very bottom of its swing the ball strikes a1.2 kgsteel block that is resting on a frictionless table. Assumingthecollision to be perfectly elastic, determine its speed of theball
a). just before the collision and
b). just after the collision ( Hint : no derivation isneededhere.).
c). To what angle does the ball rebound ?
d). What quantities are conserved in the collision ?
e). In the real world, the above collision would result insomeenergy loss. Where does the energy go ? ( Give two forms ofenergyin which the lost energy can appear.)
