Aperson is standing on a level floor. his head, upper torso,
arms and hands together weigh 438n and have a centerof gravity that
is 1.17m above the floor. his upper legsweigh 144n and have a
center of gravity that is 0.835m above thefloor. finally, his lower
legs and feet together weigh 87nand have a center of gravity that
is 0.270m above the floor. relative to the floor, find the location
of the center of gravityfor the entire body.

g = 0.98 m

Explanation:

given data:

upper portion weight 438 N and its center of gravity is 1.17 m

upper legs weight 144 N and its center of gravity is 0.835 m

lower leg weight 88 N and its center of gravity is 0.270 m

position of center of gravity of whole body can be determine by using following relation

where is mass of respective part and is center of gravity

g = 0.98 m

answeralert drivers who drift off the road;

b. false

explanation:

suppose a rock in free fall is dropped off a cliff. after falling for 5 seconds, its speed would not be 100 m/s.