Question

a stone is dropped from the top of a building reaches the ground with a velocity of 49 MS -1 if the acceleration due to gravity is 9.8 m s -2 calculate the time for which stone is falling freely​

Answer 1

Answer:

5 seconds

Explanation:

When stone is dropped it means its initial velocity (u) is zero.

Use following equation of motion

• v = u + at

t = (v - u)/a

= (49 m/s - 0 m/s) / (9.8 m/s²)

= 5 s

Answer 2

$\large\blue{heya mate!!}$

When stone is dropped it means its initial velocity (u) is zero.

Use following equation of motion

v = u + at

t = (v - u)/a

= (49 m/s - 0 m/s) / (9.8 m/s²)

= 5 s