मराठी

State two factors which determine the momentum of a body.

Advertisements
Advertisements

प्रश्न

State two factors which determine the momentum of a body.

टीपा लिहा
Advertisements

उत्तर

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
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 3: Laws of Motion - Unit I Exercise 1

संबंधित प्रश्‍न

A body of mass 0.40 kg moving initially with a constant speed of 10 m s–1 to the north is subject to a constant force of 8.0 N directed towards the south for 30 s. Take the instant the force is applied to be t = 0, the position of the body at that time to be x = 0, and predict its position at t = –5 s, 25 s, 100 s.


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.


Suppose the ceiling in the previous problem is that of an elevator which is going up with an acceleration of 2.0 m/s2. Find the elongation.


In the previous problem, suppose m2 = 2.0 kg and m3 = 3.0 kg. What should be the mass m, so that it remains at rest?


Consider the situation shown in the following figure. Both the pulleys and the string are light and all the surfaces are frictionless.

  1. Find the acceleration of the mass M.
  2. Find the tension in the string.
  3. Calculate the force exerted by the clamp on the pulley A in the figure.


A body of mass m moving with a velocity v is acted upon by a force. Write an expression for change in momentum in each of the following cases: (i) When v << c, (ii) When v → c and (iii) When v << c but m does not remain constant. Here, c is the speed of light.


A force acts for 10 s on a stationary body of mass 100 kg, after which the force ceases to act. The body moves through a distance of 100 m in the next 5 s. Calculate : The magnitude of the force


What causes motion in a body?


A ball is thrown upward and reaches a maximum height of 19.6 m. Find its initial speed?


A metre scale is moving with uniform velocity. This implies ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×