A telescpe is focussed on the moon.If a tiny drop of ink falls on its objetive,then

Give the magnitude and direction of the net force acting on:- a drop of rain falling down with a constant speed.

It is a common observation that rain clouds can be at about a kilometer altitude above the ground. If a rain drop falls from such a height freely under gravity, what will be its speed? Also calculate in km/h. (G = 10 m//s^2) .

A rain drop of radius 2 mm falls from a height of 500 nr above the ground. It falls with decreasing acceleration (due to viscous resistance of the air) until at half its original height, it attains its maximum (terminal) speed, and moves with uniform speed thereafter. What is the work done by the gravitational force on the drop in the first and second half of its journey ? What is the work done by the resistive force in the entire journey if its speed on reaching the ground is 10 m s^-1 ?

The weight of a rock on the moon is 200.6 N. What is its mass on the earth?

A stone is dropped from the edge of a rood is the following: What is its acceleration after 1s and 2s?

The weight of an object on the moon is…….. of its weight on the earth.

Where from the kinetic energy of falling rain drops come?