A0.026 kg bullet is fired straight up at a falling wooden block that has a mass of 5.0 kg. the bullet has a speed of 750 m/s when it strikes the block. the block originally was dropped from rest from the top of a building and had been falling for a time t when the collision with the bullet occured. as a result of the collision, the block (with the bullet in it) reverses direction, rises, and comes to a momentary halt at the top of the building. find the time t.

0.198 s

Explanation:

Consider the motion of the block  before collision

= initial velocity of block as it is dropped = 0 m/s

= acceleration = - g

= time of travel

= final velocity of block before collision

Using the kinematics equation

= mass of the bullet = 0.026 kg

= velocity of block just before collision = 750 m/s

= mass of the block = 5 kg

= final velocity of bullet block after collision = gt

Using conservation of momentum

you cant move and you feel like someones pushing you down onto your bed it can feel like you want to get up but you just can't it can be extremely scary

more than, less

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