Question

Give the magnitude and direction of the net force acting on

(a) A drop of rain falling down with constant speed.
(b) A kite skillfully held stationary in the sky.

CLASS - XI PHYSICS (Laws of Motion)

Answer 1

a: zero net force
the raindrops is falling with a constant speed. hence, it acceleration is zero as per Newton's second law of motion the net force acting on the raindrops is zero
b: zero net force
the kite is stationary in the sky, example: it is not moving at all . hence,as per Newton first law of motion , no net force force is acting on the kite.

Answer 2

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a) Zero net force

The rain drop is falling with a constant speed. Hence, it acceleration is zero. As per Newton’s second law of motion, the net force acting on the rain drop is zero.

b) Zero net force

The weight of the cork is acting downward. It is balanced by the buoyant force exerted by the water in the upward direction. Hence, no net force is acting on the floating cork.

I hope, this will help you

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