Question

What will be the velocity of a freely falling object 2s after the fall?​

Answer 1

Answer:

19.6 m/s

Explanation:

Use equation of motion

• v = u + at

Where

• v = Velocity after time t
• u = Velocity when t = 0 (aka initial velocity)
• a = Acceleration of body
• t = Time after which velocity changed from u to v

It's given that the object is freely falling. It means objects' initial velocity (u) is zero.

Also, acceleration of object is due to earth's gravity. It is 9.8 m/s² downwards

v = u + at

= 0 m/s + (9.8 m/s² × 2 s)

= 19.6 m/s