English

The Linear Momentum of a Ball of Mass 50 G is 0.5 Kg M S-1. Find Its Velocity.

Advertisements
Advertisements

Question

The linear momentum of a ball of mass 50 g is 0.5 kg m s-1. Find its velocity.

Sum
Advertisements

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

shaalaa.com
  Is there an error in this question or solution?
Chapter 3: Laws of Motion - Exercise 3 (C) [Page 70]

APPEARS IN

Selina Concise Physics [English] Class 9 ICSE
Chapter 3 Laws of Motion
Exercise 3 (C) | Q 2 | Page 70

RELATED QUESTIONS

A person says that he measured the acceleration of a particle to be non-zero even though no force was acting on the particle.


Both the springs shown in the following figure are unstretched. If the block is displaced by a distance x and released, what will be the initial acceleration?


A person is standing on a weighing machine placed on the floor of an elevator. The elevator starts going up with some acceleration, moves with uniform velocity for a while and finally decelerates to stop. The maximum and the minimum weights recorded are 72 kg and 60 kg, respectively. Assuming that the magnitudes of acceleration and deceleration are the same, find (a) the true weight of the person and (b) the magnitude of the acceleration. Take g = 9.9 m/s2.


Consider the Atwood machine of the previous problem. The larger mass is stopped for a moment, 2.0 s after the system is set into motion. Find the time that elapses before the string is tight again.


Consider the situation shown in the following figure  All the surfaces are frictionless and the string and the pulley are light. Find the magnitude of acceleration of the two blocks.


Find the acceleration of the blocks A and B in the three situations shown in the following figure.


A monkey of mass 15 kg is climbing a rope fixed to a ceiling. If it wishes to go up with an acceleration of 1 m/s2, how much force should it apply on the rope? If the rope is 5 m long and the monkey starts from rest, how much time will it take to reach the ceiling?


Two balls A and B of masses m and 2 m are in motion with velocities 2v and v, respectively. Compare:

(i) Their inertia.

(ii) Their momentum.

(iii)  The force needed to stop them in the same time.


How can Newton's first law of motion be obtained from the second law of motion?


A car is moving with a uniform velocity 30 ms-1. It is stopped in 2 s by applying a force of 1500 N through its brakes. Calculate the following values : The change in momentum of car.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×