A rifle bullet of mass 0.050 kg strikes a ballistic pendulum massing 4.950 kg, embedding itself in an inelastic collision. The center of mass of the pendulum rises 1.25 m from its initial position when it reaches the top of its swing. (Assume that the bullet remains embedded in the pendulum.) a.What is the momentum of the bullet alone, just before the collision? b.What is the momentum of the bullet-pendulum combination immediately after the collision
1. A rifle bullet of mass 0.050 kg strikes a ballistic pendulum massing 4.950 kg, embedding itself in an inelastic collision. The center of mass of the pendulum rises 1.25 m from its initial position when it reaches the top of its swing. (Assume that the bullet remains embedded in the pendulum.)
a.What is the momentum of the bullet alone, just before the collision?
b.What is the momentum of the bullet-pendulum combination immediately after the collision?
2. A passenger train massing 1.5 x 10^7 kg coasts up a slope rising at an angle of 25° above the horizontal at an initial speed of 120 km/hr. If the train is effectively coasting with no friction, what is the maximum horizontal distance (that is, along the slope) that the train could travel before it stops?
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