in a game of football between James and Richard James his wife of mass 25 g. while moving at 2 m per second it hit stationary blue ball of mass 20 grams after collision the whiteboard reduce the loss it is 2 m per second using the law of conservation of momentum or otherwise calculate the velocity at which the Blue Ball was moving after it was hit by a white ball.

Boxing gloves are padded to lessen the force of a blow. (a) calculate the force exerted by a boxing glove on an opponent’s face, if the glove and face compress 7.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. (b) calculate the force exerted by an identical blow in the gory old days when no gloves were used and the knuckles and face would compress only 2.00 cm. (c) discuss the magnitude of the force with glove on. does it seem high enough to cause damage even though it is lower than the force with no glove?