A machine gun is attached to a railroad flatcar that rolls with negligible friction. If the railroad car has a mass of 6.25 X10^4 kg, how many bullets of mass 25 g would have to be fired at 250 m/s off the back to give the railroad car a forward velocity of 0.5 m/s?

Q: A railroad freight car rolls on a track at 2.75 m/s toward two identical coupled freight cars, which…

A: velocity of one car, u = 2.75 m/s  velocity of two cars,  u'= 1.2 m/s  mass of each car, m = 3.4 x…

Q: A rifle with a weight of 40 N fires a 5.5 g bullet with a speed of 200 m/s.(a) Find the recoil speed…

A: By using conservation of momentum, We can write,m1v1+m2v2=0     Equation 1where, mass…

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Q: A railroad tank car rolls on a track at 3.40 m/s toward two identical coupled tank cars, which are…

A: The objective of the question is to find the speed of the three coupled cars after the collision and…

Q: A 390 kg cannon sits on a frozen lake. It fires a 5.5 kg cannonball horizontally with a speed of 305…

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Q: A SMG gun is attached to a railroad flatcar that rolls with negligible friction. If the railroad car…

A: Given Railroad car mass mr    = 7.25×104 kg Bullet mass mB             = 35 g = 0.035 kg Bullet…

Q: A railroad tank car rolls on a track at 3.50 m/s toward two identical coupled tank cars, which are…

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Q: A railroad flatcar of weight 7840 N can roll without friction along a straight horizontal track.…

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Q: Consider the collision pictured below. While m2 = 10kg is initially at rest, horizontally moving mị…

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Q: A rocket is at rest in space relative to the Earth and has a mass of M = 2.55 × 10^5 kg when it is…

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Q: An empty truck, which has the mass of 15001500 kg, rolls with a speed of 3.43.4 m/s under a loading…

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Q: From a rifle of mass 4 kg, a bullet of mass 50 g is fired with an initial velocity of 35 m/s.…

A: Given : Mass of the rifle (m1) = 4 kg Mass of the bullet (m2) = 50 g =  0.05 kg Recoil velocity of…

Q: Two balls collide and bounce off each other. The 500-g ball's initial velocity is 20 m/s while the…

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Q: A rifle with a weight of 35 N fires a 4.7-g bullet with a speed of 290 m/s. (a) Find the recoil…

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Q: A 2.7-kg cart is rolling along a frictionless, horizontal track towards a 1.8-kg cart that is held…

A: Momentum:  The momentum of an object is defined as the product of its mass and velocity.…

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Q: A rifle with a mass of 5 kg fires a 50 g bullet at a speed of 300 m/s. Solve the recoil velocity.

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Q: A uranium nucleus (mass 238 units) at rest decays into helium nucleus (mass 4.0 units) and thorium…

A: Given Helium mass m1                      = 4.0 unit Thorium mass m2                    = 234 unit…

Q: A shooter of mass m 2 = 80 kg shoots a bullet of mass m 1 = 4 gram horizontally, standing on a…

A: Given data: The mass of the shooter, m2=80 kg. The mass of the bullet, m1= 4 g. The muzzle velocity…

Q: A basketball of mass 1.25 kg travelling with an initial speed of 8 m/sec bounces off of a backboard…

A: Given Data: Basketball mass, m=1.25 kg Initial speed, u=8 m/s Final speed after bounce-off, v=-7 m/s…

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A: The momentum is conserved along horizontal and vertical axis.  The momentum is the product of mass…

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A: Given that:m=74.0 kgR=6371 km

Q: A missile of mass 2 kg is fired from a bazooka of mass 80 kg. Given that the muzzle speed of the…

A: Given : m (mass of missile) = 2 kg M (mass of the bazooka) = 60 kg v (muzzle velocity) = 40 m/s Let…

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