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- A 8.3-kg falcon catches a 2.5-kg dove from behind in midair. What is their velocity in unit of m/s after impact if the falcon’s velocity is initially 42 m/s and the dove’s velocity is 1.8 m/s in the same direction?A 0.33-kg bullet traveling at 495 m / s strikes a 2.5-kg block of wood at rest, passes through it, and exits the opposite side at 273 m / s. What is the speed of the block when the bullet leaves it?A load of gravel is dumped straight down into a 30000-kg freight car coasting at 2.2 m/s on a straight section of a railroad. If the freight car’s speed after receiving the gravel is 1.5 m/s, what mass of gravel did it receive?
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