Question

Give reason ...
a) when a boll dropped from hieght its speed continuously increased
b) when we stop pedalling a bicycle its speed slow down.
c) when a tree is shaken vigorously,its fruits and leaves fall down




plz answer me fast it's urgent​

Answer 1

Hi, your answer dear

Answer:

a) when a boll dropped from hieght its speed continuously increased:-

Answer- During free fall the ball is in constant acceleration due to earth's gravity. Therefore, if the Earth had no atmosphere, the ball would continue to accelerate constantly, therefore yes, its speed would increase continuously.

b) when we stop pedalling a bicycle it's speed slow down:-

Answer- When the rider stops pedalling the bicycle, the force of friction between the tyres of bicycle and the road acting in the direction opposite to the direction of motion of the bicycle, opposes the motion of the bicycle and this force is now unbalanced, thus slowing down the bicycle.

c) when a tree is shaken vigorously,its fruits and leaves fall down :-

Answer- When a tree is shaken,the tree moves to and fro while the fruits and leaves remain in their state of rest on account of their inertia and thus fruits and leaves separate from the tree and fall from the tree.

Hope it helps you