Consider a ball rolling around in a circular
path on the inner surface of a cone. The
weight of the ball is shown by the vector W.
There is no friction, so only one other force
acts on the ball - a normal force.
?
Draw the normal vector; what relationship
do the vectors have?

Assume similar data for the motion of the blood in your aorta. estimate how many beats of the heart it will take the blood to get from your heart to your brain. (assume that the distance from your heart to your brain is 30 cm)

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

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?