Question

8. State the action and reaction forces in the
following cases:
a. A book kept on the table.
b. Moving rocket.
c. A person walking.​

Answer 1

Answer:

A. Action: Weight of the book acting downwards.

Reaction: Force acted by the table upwards.

B. Action: Force exerted by the rocket on the gases backwards.

Reaction: Force exerted by outgoing gases on the rocket in forward direction.

C. Action: Force exerted by the feet on the ground in backward direction.

Reaction: Force exerted by the ground on feet in forward direction.

Explanation:

Answer 2

a)Action - book exerts force on the table due to gravity.

reaction - book exerts force on the table due to gravity.Reaction- the table exerts equal force on the book.

b)Action - the fuel burns and releases large amount of force in opposite direction of the movement of rocket.

reaction - the fuel burns and releases large amount of force in opposite direction of the movement of rocket.Reaction- the burnt fuel exerts equal pressure on the rocket and rocket move in upward direction.

c)Action - the person exerts force on the floor.

Reaction - the floor exerts equal force on the legs of person due to which he move forward.

HOPE IT HELPS!