Superman must stop a 130-km/hkm/h train in 110 mm to keep it from hitting a stalled car on the tracks. The train's mass is 3.6 ×× 105 kgkg. Determine the force that must be exerted on the train. Compare the magnitudes of the force exerted on the train and the weight of the train (give as %%). How much force does the train exert on Superman?

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Q: During a collision with a wall, the velocity of a 0.200-kg ball changes from 20.0 m/s toward the…

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Q: A box, initially at rest, has 22.9 N of force exerted on it for 7.30 s. If the box has a mass of…

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Q: A 10 kg block with an initial velocity of 10 m/s slides 10 meters across a horizontal surface and…

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Q: A tennis ball is flying east towards the wall with a speed of 41.3 m/s. After bounced against the…

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Q: A 4.0 kg mess kit sliding on a frictionless surface explodes in two different sized parts, one has a…

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Q: A running back (RB) of mass m1 = 98 kg is running at v1= (8.1m/s)ĵ LB towards the end zone. A…

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Q: A 69.8 kg bungee jumper is initially standing at rest on a bridge. After falling a distance 13.2 m,…

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Q: A force of 45 N is applied in the horizontal direction to an object with a mass of 3 kg. Since the…

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: