D/e/1FAIpQLSe40Kw6ddT6PLNPyzdo 50_jNWHLIU2w9bFvmvj9z4K4-eXszg/view form
7) (From Page 12) A block is sitting on a platform 20 m high. It weights 501 point
kg. How much Potential energy does it contain? *
O
O
1,000 j
9,800 J
10,000 J
O
25,000
8) (From Page 15) At the moment when a shot putter releases a 5.00 kg

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.

where is the

1 is a answer of a question