Monday, August 15, 2011
A projectile of m 5 kg..........?
A projectile of m 5 kg is shot horizontally with an initial speed of 17 m/s from a height of 25m. For the instant before it strikes the ground, what is the work done on the projectile by gravity? What is the change in kinetic energy of the projectile? What is the speed of the projectile as it hits the ground?
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