The same
same
velocity
At what point
be closet
04: A
ball i popected horientally from the
Dormentally from the top of a buiddi
ng
one second later and the ball ū project of horizontally
from
pont with the
in the
motion
will the balls
to each other?
Will
fint ball always be tracelling faster than the
second ball ?
will be the time internal between them
when the balls hit the ground?
Con the horizontal pro
pertrin celozity of the second ball be
ball be changed so that the be
arrive the ground at the
same time?
the
2
o hat
at

What is the length x of the side of the triangle below? (hint: use the cosine function)

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?

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n