Question

please help me to do all 1 to 4 questions u will get 100 points and your answer would be marked the brain list please quick its urgent please

Answer 1

1) firing the bullet is the action and recoil from the gun is the reaction
2) the force put on the nail is the action and the force experienced by the person who is hammering is reaction
3) the force applied by the book is the action while the force applied by the table to the book is reaction
4) forces exerted by the rocket is the action and the force applied by the gases towards a rocket is the reaction
5) the force exerted which is proportional to the weight of the man is the action and the force exerted by the floor towards the man is reaction
6) the force applied by removing train is the action and the force applied by the stationary train towards the moving train is reaction
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ii) The loaded vehicle will need more force than that of the empty one because force applied is directly proportional to the weight of the object

iii) yes if any object happens to be in motion there must be a force applied to it. because according to Newton's first law of motion everybody tends to change its state of rest or of motion unless a force is applied to it.

Answer 2

1
i》action-force exerted on the bullet
reaction-gun experiences an equal recoil

ii》action-the force by the hammer on the nail
reaction-the force applied by nail on the
hammer

iii》action-weight of the book acting downwards
reaction-force acted by table upwards

iv》action-force exerted by the rocket on the gases backwards
reaction-the force exerted by the outgoing gaseson the rocket in forward direction

v》action-force exerted by the feet on the floor in backward direction
reaction-force exerted by the floor on feet in forward direction

vi》action-the force exerted by the moving train on the stationary train
reaction-force exerted by the stationary train on the moving train

2》the loaded vehicle requires more force to stop.

3》yes,it is necessary that a force is acting on a body if it is in motion