Apparatus:
Two carts provided with frictionless wheels and spring, two wooden bampers, meter and self-indication balance.
Observations and Calculations:
Zero correction of the spring balance =………………N
Mass of the cart (1) =……………….kg.
Mass of the cart (2) =………………kg
Initial velocity of loaded carts =………………zero
| No. of Obs. | Mass of | Distance covered | Momentum | Final Momentum M1 x1 – m2 x2 | |||
| Cart I M1 Kg | Cart 2 M2 kg | Cart 1 X1 m | Cart 2 X2 m | Cart 1 m1 X1 | Cart 2 m2 X2 | ||
Inference:
Momentum before collision= Momentum after collision. Hence the law of conservation of momentum is verified.
Procedures
Use the spirit level to check the leveling of table. Adjust the wooden bumper the both edges of the table, so that it can stop heavy cart safely. Find out the mass of cart i and cart 2 with self-indicating balance. Place one cart next to the other half way in between the bumpers, so that the spring in the loaded exploders pushes against the other when released by drawing off the pin P at the front. Release the carts and these will move in opposite directions and ultimately hit the bumpers at the edge of the table. After several trials position will come. when both carts will take same time to reach the bumpers
Precautions:
1. The surface of the table, should be smooth and level.
2. Cart wheel should be oiled.
1. The distance measured should be from the bumper inner edge to the rear side of the cart.
VIVA VOCE
Q.1. What is the principle of momentum?
Ans. The momentum of the isolated system remains unchanged.
Q.2. Is it possible to exert a force and yet transfer no energy?
Ans. Yes no energy transferred when a force acts on a moving body at right angle to its motor.
Q.3. what is important role of momentum in the process of collision?
Ans.It is conserved both in elastic and inelastic collisions.
Q.4. What happens to the momentum of a car when it comes to stop?
Ans. Most of the momentum is transferred to the earth through the road and a small amount to the air molecules surrounding the car.
