4. || A large raindrop-the type that lands with a definite splat-has a mass of 0.014 g and hits your roof at a speed of 8.1 m/s.
a. What is the magnitude of the impulse delivered to your roof?
b. If the raindrop comes to rest in 0.37 ms, what is the magnitude of the
average force of the impact?

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

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?

Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)