- #1

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Problem solved, many thanks

Last edited:

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- Thread starter MrRandom66
- Start date

- #1

- 38

- 0

Problem solved, many thanks

Last edited:

- #2

- 993

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Write down some equations that may be used. The we can discuss which of them can apply.

- #3

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You might want to check your units.

- #4

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- #5

- 993

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You can find the initial speed in the vertical direction.

- #6

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You can find the initial speed in the vertical direction.

Could you explain that please?

- #7

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Try to find what is known in the vertical direction.

- #8

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Try to find what is known in the vertical direction.

Vertical displacement is 15m, and Gravity due to acceleration is 9.8 m s^2

- #9

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final speed

distance travelled

acceleration

time

Which of the above are known in the vertical direction?

- #10

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What is the speed in the vertical at the maximum height?

- #11

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Distance Travelled, and Acceleration?

Feel like I'm missing something here...

Feel like I'm missing something here...

- #12

- 993

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Correct but acceleration is negative if we choose upward direction as positive.Vertical displacement is 15m, and Gravity due to acceleration is 9.8 m s^2

- #13

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Oh zero. I was missing something

- #14

- 993

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Now you CAN find the initial speed in the vertical direction.

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- #15

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- #16

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I think that you mean the initial (vertical) speed.Before I calculate the final speed, I have to get t, correct?

- #17

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I think that you mean the initial (vertical) speed.

Yes, I did.

- #18

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- #19

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Sorry, I'm having a hard time getting my head round this.

I'm not sure what equation to use to find final velocity.

- #20

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Try to find - from notes or internet - the equations you can use.

- #21

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OK, I've got the equation for final velocity, give me a minute and i'll work out the time.

- #22

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- #23

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Yes.

- #24

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I'm going to double check my notes, but i'm sure i'll need help sooner or later.

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