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Missing homework template due to originally being posted in other forum.

This is not a homework question so I have posted here.

The question relates to velocity and acceleration.

Description: A coin is rolled along the balcony edge at the steady speed of 0.46 m/s before falling off the edge after 2.4 seconds. It then accelerates due to gravity and hits the ground after 8 seconds at a speed of 78.4 m/s. Assume that no air resistance acts on the coin.

The first part of the question asks how far the coin rolls before falling off the edge of the balcony. I got this part correct with the answer 1.1 m.

The second part asks: calculate the acceleration of the coin during its fall.

My calculation is:

The book just writes

So the book seems to have

**<<Mentor note: This question is homework-like and therefore belongs in the homework forums. Please also refrain from excessive use of colours and font sizes.>>**The question relates to velocity and acceleration.

*I think the answer of the book is incorrect.*Description: A coin is rolled along the balcony edge at the steady speed of 0.46 m/s before falling off the edge after 2.4 seconds. It then accelerates due to gravity and hits the ground after 8 seconds at a speed of 78.4 m/s. Assume that no air resistance acts on the coin.

The first part of the question asks how far the coin rolls before falling off the edge of the balcony. I got this part correct with the answer 1.1 m.

The second part asks: calculate the acceleration of the coin during its fall.

My calculation is:

The book just writes

So the book seems to have

**forgotten**that the initial velocity of the coin was 0.46 m/s. Have they just assumed that the coin started from 0 m/s velocity**? Please advise. Thank you***or am I missing something*
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