- #1

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What is the maximum height the ball reaches above the level from which it was hit?

What I did:

vf^2=vi^2+2ad

0=(35sin70)^2+(2*-9.8)d

d=55 m

i was just wondering if i have to take the 6 metres into account?

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- Thread starter chukie
- Start date

- #1

- 80

- 0

What is the maximum height the ball reaches above the level from which it was hit?

What I did:

vf^2=vi^2+2ad

0=(35sin70)^2+(2*-9.8)d

d=55 m

i was just wondering if i have to take the 6 metres into account?

- #2

Hootenanny

Staff Emeritus

Science Advisor

Gold Member

- 9,621

- 7

No, since the question asked:

What is the maximum height the ball reaches above the level from which it was hit?

What I did:

vf^2=vi^2+2ad

0=(35sin70)^2+(2*-9.8)d

d=55 m

i was just wondering if i have to take the 6 metres into account?

There is no need to take into account the initial height. However, if the question were to inquire about the ballWhat is the maximum height the ball reachesabove the level from which it was hit?

- #3

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thanks =)

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