question archive In a experiment students drop 500 g mass towards different services from Height 2

In a experiment students drop 500 g mass towards different services from Height 2

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In a experiment students drop 500 g mass towards different services from Height 2.0 m in which case is the impulse acting on the mass the greatest?

a.) The mass lands on the concrete and bounces back up

b.)The mass crashes through a flat horizontal mirror

c.) The mass lands at tank of water and settles to the bottom

d.) The mass lands on a hard foam pad and stops

 

to rail road box cars of equal mass move towards each other at the same speed after cleaning the stick together which of the following correctly describes a combined velocity after the collision?

a.)It will be zero

b.) It will be the same as the original velocity of either car

c.) It will be half the original velocity of either car

d.) It'll be twice the original velocity of either car

what is the momentum of a 70 kg runner who covers 400 m in 50 seconds?

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