Three blocks in contact with each other are pushed across a rough horizontal surface by a
73 N force as shown.
The acceleration of gravity is 9.8 m/s2.

If the coefficient of kinetic energy between each of the blocks and the surface is 0.16 find the magnitude of the force exerted on the 7.2kg block by the 6.6 kg block
Answer in units of N

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?