- #1

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The speed of the toboggan at B

A is at 10m

B is at 0

C is at 3m

I only know the potential energy for A, the mass, and initial velocity

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- Thread starter max1020
- Start date

- #1

- 45

- 0

The speed of the toboggan at B

A is at 10m

B is at 0

C is at 3m

I only know the potential energy for A, the mass, and initial velocity

- #2

Nathanael

Homework Helper

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I only know the potential energy for A, the mass, and initial velocity

You know the potential energy for A relative to where? Relative to B?

If so, then that's enough information.

You know about conservation of energy, right? All of the potential energy of A relative to B will have been converted into kinetic energy (at point B).

- #3

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I know the total mechanical energy for A which is 8820J

- #4

Nathanael

Homework Helper

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If so, then that sum will have the same value at point B.

- #5

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But how do I use that to find speed? Is there a formula for that

- #6

HallsofIvy

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- #7

NascentOxygen

Staff Emeritus

Science Advisor

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But how do I use that to find speed? Is there a formula for that

Do you know a formula that relates the K.E. of an object to its velocity?

- #8

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Do you know a formula that relates the K.E. of an object to its velocity?

Is it

V=sqrt2k/m

- #9

NascentOxygen

Staff Emeritus

Science Advisor

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Is it

V=sqrt2k/m

No, not quite right....but you could make it right be adding a pair of parentheses.

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