- #1

fish

- 49

- 0

I did sin 20 degrees x 5.0 m = 1.71 m

how do i get the mass from this measurement?

1.71m can't equal mg=w

w=9.8m/s^2*mass

If I could find find (a)accel., then I could use one of the

kinematic equations.

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- Thread starter fish
- Start date

- #1

fish

- 49

- 0

I did sin 20 degrees x 5.0 m = 1.71 m

how do i get the mass from this measurement?

1.71m can't equal mg=w

w=9.8m/s^2*mass

If I could find find (a)accel., then I could use one of the

kinematic equations.

- #2

StephenPrivitera

- 363

- 0

mgsin20=ma

- #3

fish

- 49

- 0

thanks Stephen, I got it now.

Once you solve for a, the masses

cancel each other out.

Once you solve for a, the masses

cancel each other out.

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