- #1

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Suppose a the tteacher's hand is 1m from the floor, and the teacher flicked a chalk upwards at 2m/s. How long will it take for the chalk to reach the floor?

I can't seem to use only one equation, it's always two equations or three.

- Thread starter jacyh
- Start date

- #1

- 4

- 0

Suppose a the tteacher's hand is 1m from the floor, and the teacher flicked a chalk upwards at 2m/s. How long will it take for the chalk to reach the floor?

I can't seem to use only one equation, it's always two equations or three.

- #2

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BJ

- #3

HallsofIvy

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But to find theDr.Brain said:

BJ

I would vote for d= -(1/2)gt

- #4

mukundpa

Homework Helper

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it is quadratic in t gives two values of t, the positive value is the answer.

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