Advertisements
Advertisements
प्रश्न
ame the law of motion which gives the definition of force.
Advertisements
उत्तर
2nd law of motion gives the definition of force.
APPEARS IN
संबंधित प्रश्न
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?
Suppose you are running fast in a field and suddenly find a snake in front of you. You stop quickly. Which force is responsible for your deceleration?
A man has fallen into a ditch of width d and two of his friends are slowly pulling him out using a light rope and two fixed pulleys as shown in the following figure. Show that the force (assumed equal for both the friends) exerted by each friend on the road increases as the man moves up. Find the force when the man is at a depth h.
The force of buoyancy exerted by the atmosphere on a balloon is B in the upward direction and remains constant. The force of air resistance on the balloon acts opposite the direction of velocity and is proportional to it. The balloon carries a mass M and is found to fall to the earth's surface with a constant velocity v. How much mass should be removed from the balloon so that it may rise with a constant velocity v?
Find the acceleration of the blocks A and B in the three situations shown in the following figure.
State the Newton's second law of motion. What information do you get from it?
The linear momentum of a ball of mass 50 g is 0.5 kg m s-1. Find its velocity.
State Newton's second law of motion. Is Newton's first law of motion contained in Newton's second law of motion?
Use Newton's second law to explain the following:
While catching a fast moving ball, we always pull our hands backwards.
A hockey player is moving northward and suddenly turns westward with the same speed to avoid an opponent. The force that acts on the player is ______.
