Aball is dropped from the top of a building. it initially moves at 4.0 m/s. after 0.5 seconds, it moves at 3.8 m/s. what force is responsible for the slowing of the ball?

a. air resistance
b. gravity
c. normal
d. tension

Air resistance

A is correct.

Explanation:

Air resistance :

Air resistance is a friction between air particles and object

Air resistance is a force which opposes to the relative motion of an object.

Air resistance depends on surface area and mass of the object.

When the air resistance and weight of the object are equal then the acceleration will be zero, the object will move with constant velocity.

Therefore,

A ball is dropped from the top of a building. It initially moves at 4.0 m/s. After 0.5 seconds, it moves at 3.8 m/s. The ball will be slow due to the air resistance.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2