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Simon777
Simon777 is offline
#7
Sep7-11, 01:26 PM
P: 35
Quote Quote by ehild View Post
The problem says that the motorcycle drops 15 m. Your formula means that it raises as your final position is 15 m higher than the initial one. Correct it.

ehild
I finally see where I went wrong. I chose down as the positive direction for y to not have to deal with negative numbers, hence the positive acceleration and positive 15m.

Where this went wrong is that the formula already factors a negative downward acceleration into it with the -(1/2)gt^2 so the downward direction has to be negative.

Thank you so much for helping me realize this.

I ended up with the right answer of 22.8 degrees.