Forces and Laws...

A body of mass $$300\ g$$ is at rest. What force in Newton will you have to apply to move it through $$200\ cm$$ in $$10\ s$$?

In a rocket, fuel burns at the rate of $$1\ kg/s$$. This fuel is ejected from the rocket with a velocity of $$60\ km/s$$. Force exerted on  the rocket in $$N$$ is:

Which of the following units is used to measure thrust?

A man is standing on a boat in still water. If he walks towards the shore the boat will :

A force  100 N acts in a body mass 2 kg for 10 s. The change in the velocity of the body is :

Two individual forces of magnitude $$F_1$$ and $$F_2$$ act on a body of mass 1 kg as shown in the figures (i) and (i). If product of net magnitudes of forces produced in fig (i) and (ii) is 27 N then find the magnitude of forces $$F_1$$ and $$F_2$$. (assume $$F_1$$ > $$F_2$$)

S.I. unit of momentum is :

A book is at rest on a table. What is the "reaction" force according to Newton's third law to the gravitational force by the earth on the book?

A loaded $$20,000  \ kg$$ coal wagon is moving on a level track at $$6$$ ms$$^{-1}$$. Suddenly $$5000  kg$$ of coal is dropped out of the wagon. The final speed of the wagon is:

The time, in which a force of $$2\ N$$ produces a change as the momentum of $$0.4\ kg ms^{-1}$$ in the body whose mass is $$1\ kg$$ is :