Question

1.in which of the following case the net force is not zero..

a)a kite skillfully held stationary in the sky..
b) a ball freely falling from a height.. c) a aeroplane rising upwards at an angle 45°with the horizontal with a constant speed.
d) a wooden block floating on the surface of water...


Best answer brainliest... With explanation..
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Answer 1

Answer:

i think b is the correct option beacuse as according to the newtons first law of motion the vector of all the forces acting on a body will be zero then and only the body remains unacclerated or moves with constant but in case of body is moving with accleration hence the net force is not zero hope it will help u

Answer 2

Explanation:

If a ball freely falls from a height, then it will accelerate with an acceleration of g

Therefore force acting on it is not zero

In remaining options, the net acceleration is 0. So there is not net force

Therefore option B is correct