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## How to derive the equation of law of conservation of momentum ?

Asked by 26th February 2008 5:35 PM

## A bullet weighing 50 grams leaves the gun with a velocity of 30m/s. The ratio of momentum of the bullet to the gun is what?

Asked by aahnik.mohanty 27th November 2017 8:10 PM

## Q.

Asked by Arushi Juyal 16th December 2017 6:45 AM

## state  the law of conversation of linear momentum.derive it from the newton's second law of motion

Asked by futureisbright051101 5th March 2018 7:26 PM

## A man weighing 80 kg is standing in a trolley weighing 320 kg. The trolley is resting on frictionless horizontal rails. If the man starts walking on the trolley with a speed of 1m/s, then after 4 second his displacement relative to the ground will be :- a)5 m. b)4.8 m c)3.2m d)3 m

Asked by acv27joy 25th May 2018 10:12 PM

## A particle of mass 'm' moving towards the east with speed 'v' collides with another particle of same mass and same speed 'v' moving towards the north. If the two particles stick to each other, the new particle of mass 2m will have a speed of?

Asked by nasir.mirza 13th June 2018 10:47 PM

### JEE Plances JEE (Main) Physics

Asked by pukai7229 10th July 2018 11:28 PM

## An empty rail carof mass 100kg is at rest on the railway track. A boy of mass 40kg running with a speed of 5m/s jumps on the rail car. The speed of the (car + boy )system is how much

Asked by Leenatripathi20 14th September 2018 11:09 PM

## A body of mass 1 kg is initially at rest, explodes and breakers into three fragments of masses in the ratio 1:1:3. The two fragments of equal masses fly off perpendicular to each other with a speed of 30m/s each. What is the velocity of the heavier fragment ? Ans. 14.1m/s, at an angle of 135° relative to the second fragment

Asked by rrpapatel 18th October 2018 4:04 PM

## In a rocket, the mass of the fuel is 90℅ of the total mass. The exhaust gasses are ejected at a speed of 2km/s. Find the maximum speed attained by the rocket with diagram. Neglect gravity and air resistance and take the initial speed of the rocket to be zero. (Given, log e 10 = 2.3)

Asked by rrpapatel 18th October 2018 4:13 PM

## Derive third law of motion by using the law of conservation of linear momentum

Asked by vasudevdewangan031 7th March 2019 7:50 PM

## a 20g ball hits a wall at 45º angle with a speed of 15m/s and rebounds perpendicular to the direction of incidence with same speed .Find the impulse received by the ball

Asked by SUMITA 24th May 2019 9:19 AM

## a bullet of mass 10 g is fired at a speed of 10 m/s-1 from a gun of a mass of 4 kg. what is the recoil velocity of the gun?

Asked by ujjawalraj95049 3rd July 2019 10:51 PM

## Bullet having a mass of 10 gram and moving with a speed of 1.5 metre per second penetrates a thick wooden plank of mass 900 gram the plank was initially at rest the bullet gets embedded in the plank both andmove together determine their velocity.

Asked by Umeshkhewalkar02 5th July 2019 9:43 AM

## Two objecrts, each of mass 1.5kg, are moving in the same straight line but in opposite directions.  The velocity of each object is 2.5m/s before the collision during which they stick together. What will be the collision?

Asked by shoubikdas2017 9th July 2019 9:21 AM