The centripetal force on an object in circular motion is a.
perpendicular to the plane of the object’s motion.
b.
in the plane of the object’s motion and perpendicular to the tangential speed.
c.
in the plane of the object’s motion and in the same direction as the tangential speed.
d.
in the plane of the object’s motion and in the direction opposite the tangential speed.

Please select the best answer from the choices provided

A
B
C
D

seeing the graph would

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr