Question

Why is Newton's first law of motion also called law of inertia?

What should be the value of F in the following, to balance the effect of F₁ and F₂?

A body of mass 9 kg is lying on a surface of table. Calculate the net force acting on it.

The image shows a two blocks of mass m₁ and m₂ on wooden plank, which is pivoted at its center. The weights are r₁ and r₂ distances apart from the point of pivot. Under what condition do the weights get balanced on the wooden plank?

Two forces of 10 N and 6 N are acting on a block lying on the table as shown in Fig. 6.6. What is the magnitude and the direction of the net force acting on the block in each case?