Question

please answer this question

Answer 1

Force and Newton's Laws of Motion,

Now,
Question no. 1
(1) Is motion of a body from rest to rest uniform motion?

Ans: Uniform motion is a type of motion where the difference between the velocities per unit interval of time is equal and a constant initiatief.

Here the from rest to rest,
Let the speed = 0m/s(as it is in rest), after 1 second speed = 0m/s after 2second speed = 0m/s

So the difference 1 = 0 - 0 = 0m/s
and difference 2 = 0 - 0 = 0m/s
As it is in rest the initia is surly constant

So, rest to rest is uniform motion.

Question no.2
(2)In nature forces appear in pairs,

Ans: As we all know that if we try to push a wall the wall appears to be exerting an equal and opposite force.

Newton's third law states that every action has an equal and opposite reaction.

As the example suggest the opposite force that we feel is the reaction force.And this is for all bodies.

So we can say that in nature forces appear in pairs.

Question no.3
Nothing moves unless it is moved,

Ans: As Newton's first law suggests that an object in motion will always be in motion in the same speed and in the same direction and an object in rest will always be in rest unless an unbalanced force is applied

From this we can say that if we don't apply a force to a still object it won't move.

Thus we can say that nothing moves unless it is moved.

Question no.4
Why Newton's first law of motion known as law of initia ?

Ans: An object in motion trys to stay in motion and an object at rest trys to stay at rest unless the object is acted upon by an unbalanced force - this is Newton's first law of motion.(Official defination)

Now initia is the tendency to have no change in its state i.e. if it is in motion it should try to be in motion and if it is in rest it should try to be in rest.

And the first law states the same thing.So it is called law of initia.

That's it
Hope it helped (●´ϖ`●)