Question

When 2 objects (two ball A and B) having masses mA and ma are IMx4-4M travelling in the same direction along a straight line at different velocities VA and VB. There are no other external unbalanced forces acting on them but when they colloid. 1. If the mass of a body is doubled and its velocity becomes half, then the linear momentum of the body will a. remain the same b. become double c. become half d. become four times 2. Which of the following statement is incorrect? L. Ball A exerts a force FAB on ball B II. Ball A exerts a force FRA on ball B III. Momentum of ball A before the collision are mau IV. The force applied on both balls is in the same direction a (I) and (II) b. (II) and (III) c. (III) and (IV) d. (II) and (IV) The masses of the two bodies are in ratio 5:6 and their velocities are in ratio 1:2. Then their linear momentum will be in the ratio 3. a. 5:6 b. 1:2 c. 12:5 d. 5:12 A bullet of mass 10g is fired from a gun of mass 6kg with a velocity of 300m/s calculate the recoil velocity of the gun. 4. a. 0.5m/s b. 0.6m/s (ii) c. 0.6m/s d. 8 m/s​

Answer 1

Explanation:

Balanced and Unbalanced Forces

First Law

Inertia and Mass

State of Motion

Balanced vs. Unbalanced Forces

Newton's first law of motion has been frequently stated throughout this lesson.

An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.