Question

An object of mass 30 kg is in free fall in a vacuum where there is no air resistance. Determine the acceleration of the object.

Answer 1

Answer:

In free fall, mass is not relevant and there's no air resistance, so the acceleration the object is experimenting will be equal to the gravity exerted. If the object is falling on our planet, the value of gravity is approximately 9.81ms2

Answer 2

Given:

An object of mass 30 kg is in free fall in a vacuum where there is no air resistance.

To find:

Acceleration of the object?

Solution:

• The object of mass 30 kg falls freely.

• However, question clearly mentions that the object falls in vacuum and there is no air resistance or air drag.

• Now, assume that the object is falling freely in vacuum under the influence of Earth's gravitational effect.

• In that case, the acceleration should be 9.8 m/s² , which is the standard value of gravitational acceleration on earth surface.

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