Asked May 19, 2019

A knife is dropped from the top of a 10.0 m high mast on a ship moving at 1.75 m/s due south.

(a) Calculate the velocity of the knife relative to the ship when it hits the deck of the ship. 


Expert Answer

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Step 1


Height from which knife is dropped, h = 10.0 m

Velocity of the ship, v = 1.75 m/s due to South

We have to find the velocity of the knife with respect to the ship when it hits the deck.

Step 2

Since, the knife is dropped, its initial velocity is 0 m/s downwards. 

The knife would freely fall due to gravity. 

So, a = g = 9.81 m/s...


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