Free fall

Free fall is any motion of a body where ____ is the only force acting upon it.

• body attraction

• tension

• gravity

• velocity

Two rocks with different size and mass are dropped from the same height. Which of the rock will reach the ground first? (ignore air resistance)

• greater rock

• smaller rock

• both reach the ground at the same time

In Newtonian physics, ________________ is any motion of a body where gravity is the only force acting upon it.

• kinematics

• free fall

• mechanics

• velocity

The standard acceleration due to gravity (or standard acceleration of free fall),is the nominal gravitational acceleration of an object in a vacuum near the surface of the Earth. It is defined by standard as:

• 9.8 m/s.

• 9.8 m.

• 9.8 m/s².

• 9.8 s.

Which of the following graphs best represents free fall motion?

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