Question

The acceleration of free fall on the moon is 1/6 of that on earth.On earth it takes time t for a stone to fall from rest a distance 2m.What is the time taken for a stone to fall from rest a distance 2m on moon????​

Answer 1

Answer:

Time period of the simple Pendulum is 2π

g

l

.

On the moon, g changes thus Time period of the Pendulum changes.

Therefore, actual time, times in the fall will not be equal.

Therefore, Option (c). is incorrect.

Also, v

2

−u

2

=2ah

∴ v=

(2gh)

Now, Velocity will also be different on the moon. Hence, Actual speeds will not be equal.

Therefore, Option (d) is incorrect.

Now, The measured time and speed will be same. This is because, if the particle covers h distance in time t, then it will covers the h distance on moon in time t. This is what measured by the Clock.