Explain these lines briefly. Write maximum 5-6 lines for each answer...1. A ball rebounds after striking against a flow. By third law of motion.2. Inflated balloon lying on the surface of the floor moves forward when pierced with a pin. By conservation of momentum.3. When a fast moving bus negotiate a curve on the road, passenger falls towards the centre of the curved road. By first law of motion.4. A stone tied to a string in whirling in a horizontal circle. If the string breaks, the stone flies away tengentically. By first law of motion.
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Inflated balloon lying on the surface of the floor moves forward when
pierced with a pin. By conservation of momentum:
when we pierce a balloon with pin, a large volume of gases comes out in backward direction. due to high speed which they gain high momentum. they impart equal and opposite momentum to balloon due to which balloon moves forward.
2. When a fast moving bus negotiate a curve on the road, passenger falls towards the centre of the curved road.because of Newton's First law .when bus takes sharp turn, the upper part body of passenger tend to be in inertia of motion, where as lower part will be in direction of bus.hence passenger tends to move towards right side when bus takes left turn.
3. when a stone tied to a string in whirling in a horizontal circle. if string breaks, the stone flies away tangentially due to first LAW OF MOTION.
WHICH STATES THAT OBJECT CONTINUES TO BE IN STATE OF REST OR UNIFORM MOTION UNLESS IT IS COMPELLED TO CHANGE ITS STATE
BY ACTION OF NET FORCE.
SO STONE CONTINUES TO MOVE IN MOTION TANGENTIALLY EVEN IT IS DETACHED FROM STRING DUE TO INERTIA OF MOTION .
when we pierce a balloon with pin, a large volume of gases comes out in backward direction. due to high speed which they gain high momentum. they impart equal and opposite momentum to balloon due to which balloon moves forward.
2. When a fast moving bus negotiate a curve on the road, passenger falls towards the centre of the curved road.because of Newton's First law .when bus takes sharp turn, the upper part body of passenger tend to be in inertia of motion, where as lower part will be in direction of bus.hence passenger tends to move towards right side when bus takes left turn.
3. when a stone tied to a string in whirling in a horizontal circle. if string breaks, the stone flies away tangentially due to first LAW OF MOTION.
WHICH STATES THAT OBJECT CONTINUES TO BE IN STATE OF REST OR UNIFORM MOTION UNLESS IT IS COMPELLED TO CHANGE ITS STATE
BY ACTION OF NET FORCE.
SO STONE CONTINUES TO MOVE IN MOTION TANGENTIALLY EVEN IT IS DETACHED FROM STRING DUE TO INERTIA OF MOTION .
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1. The ball (with its momentum and kinetic energy) hits the ball and exerts force on the wall. By third law of motion, the wall exerts equal and opposite force on the ball. So the ball rebounds due to that force.
2. An inflated balloon has higher air pressure inside than outside. So when the balloon is pierced, the air from inside gushes out with a lot of velocity (given by the pressure difference). By conservation of momentum the balloon with the rest of air inside, moves forward opposite to the air gushing out.
3. When a bus negotiates a curve on the road curving towards left, then the upper portion of the bodies of passengers, still continue to travel in a straight line. That is away from the curve towards right. This is due to inertia of motion and first law of motion.
4. A stone circling in a horizontal circle has an instantaneous velocity in the direction tangential to the circle. When the string snaps, it continues in the tangential direction. This is due to inertial of motion - the first law.
2. An inflated balloon has higher air pressure inside than outside. So when the balloon is pierced, the air from inside gushes out with a lot of velocity (given by the pressure difference). By conservation of momentum the balloon with the rest of air inside, moves forward opposite to the air gushing out.
3. When a bus negotiates a curve on the road curving towards left, then the upper portion of the bodies of passengers, still continue to travel in a straight line. That is away from the curve towards right. This is due to inertia of motion and first law of motion.
4. A stone circling in a horizontal circle has an instantaneous velocity in the direction tangential to the circle. When the string snaps, it continues in the tangential direction. This is due to inertial of motion - the first law.
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