Question

a tree fall off a cliff and drop to ground in 0.5 s. let g is = 10m / square .calculate the speed on striking in the ground.​

Answer 1

Answer:

Initial Speed (u) = 0 Second (obeject at rest)

Time taken (t) = 0.5 seconds

Acceleration due to gravity (g) = 10 m/s²

So,

According to 1st equation of motion..

v = u + at

v = 0 + 10×0.5

v = 5

So the speed on striking the ground is 5 m/s.