Hi guys,
I'm having some trouble with the 2nd part (part b) of this question:

I managed to get the answer to part a as 28.59m - hopefully this is correct!?
Part b I'm not really sure where to start. Could someone give me a hint or a link to a similar problem as I am having trouble finding a similar example in my textbook?
I'm having some trouble with the 2nd part (part b) of this question:

I managed to get the answer to part a as 28.59m - hopefully this is correct!?
Part b I'm not really sure where to start. Could someone give me a hint or a link to a similar problem as I am having trouble finding a similar example in my textbook?

