Advertisements
Advertisements
Question
The linear momentum of a ball of mass 50 g is 0.5 kg m s-1. Find its velocity.
Solution
Linear momentum = 0.5 kg m/s
Mass, m = 50 g = 0.05 kg
Velocity = Linear momentum/mass
= 0.5/0.05 m/s
= 10 m/s -1
APPEARS IN
RELATED QUESTIONS
An object is placed far away from all the objects that can exert force on it. A frame of reference is constructed by taking the origin and axes fixed in this object. Will the frame be necessarily inertial?
Two objects A and B are thrown upward simultaneously with the same speed. The mass of A is greater than that of B. Suppose the air exerts a constant and equal force of resistance on the two bodies.
Consider the situation shown in the following figure. Both the pulleys and the string are light and all the surfaces are frictionless. (a) Find the acceleration of the mass M; (b) find the tension in the string; (c) calculate the force exerted by the clamp on the pulley A in the figure.
Find the acceleration of the 500 g block in the following figure.
Define linear momentum and state its S.I. unit.
A body of mass 200 g is moving with a velocity of 5 ms−1. If the velocity of the body changes to 17 ms−1, calculate the change in linear momentum of the body.
Define Newton’s second law of motion.
A stone is dropped from a cliff 98 m high.
How long will it take to fall to the foot of the cliff?
A stone is dropped from a cliff 98 m high.
What will be its speed when it strikes the ground?
What do you mean by the conservation of momentum? Briefly, explain the collision between two bodies and the conservation of momentum.