English

State two factors which determine the momentum of a body.

Advertisements
Advertisements

Question

State two factors which determine the momentum of a body.

Short/Brief Note
Advertisements

Solution

Factors which determine the momentum of a body are:

  1. Mass of the moving body: Larger the mass of a body, larger will be its momentum.
  2. Velocity of the body: Larger the velocity of the body, larger will be its momentum.
shaalaa.com
  Is there an error in this question or solution?
Chapter 3: Laws of Motion - Unit I Exercise 1

APPEARS IN

RELATED QUESTIONS

A constant retarding force of 50 N is applied to a body of mass 20 kg moving initially with a speed of 15 ms–1. How long does the body take to stop?


The below figure shows the position-time graph of a particle of mass 4 kg.

  1. What is the force on the particle for t < 0, t > 4 s, 0 < t < 4 s?
  2. What is the impulse at t = 0 and t = 4 s? (Consider one-dimensional motion only.)


A block of mass 15 kg is placed on a long trolley. The coefficient of static friction between the block and the trolley is 0.18. The trolley accelerates from rest with 0.5 ms–2 for 20 s and then moves with uniform velocity. Discuss the motion of the block as viewed by (a) a stationary observer on the ground, (b) an observer moving with the trolley.


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.


An empty plastic box of mass m is found to accelerate up at the rate of g/6 when placed deep inside water. How much sand should be put inside the box so that it may accelerate down at the rate of g/6?


Calculate the tension in the string shown in the following figure. The pulley and the string are light and all the surfaces are frictionless. Take g = 10 m/s2.


In the following figure shows a man of mass 60 kg standing on a light weighing machine kept in a box of mass 30 kg. The box is hanging from a pulley fixed to the ceiling by a light rope, the other end of which is held by the man himself. If the man manages to keep the box at rest, what is the weight recorded on the machine? What force should he exert on the rope to record his correct weight on the machine?


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.


Newton’s Second Law corrected the old belief that force is needed to maintain motion. This idea came from the philosopher ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×