Question

if a rock has a speed of 12 m/s as it hits the ground, from what height did it fall assuming the speed was zero.its mass is 50 kg

Answer 1

7.3 m

Step-by-step explanation:

Answer 2

a=9.8 ms−2 12^2=0^2+2×9.8×H

H=7.35m

Step-by-step explanation:

To find the height the following formula should be used: v2=u2+2aH

Assuming this occurs on earth,