A ball swings in a vertical circle at the end of a 1.30 m long rope. When the ball is 37.5° past the lowest point on its way up, its total acceleration is (-22.5 i + 20.2 j) m/s2.
Determine the magnitude of its radial acceleration.
(in m/s2)
Determine the speed and velocity of the ball.
I 'm not sure how to solve this problem... I know the basic rotational motion equations, but this is too complicated for me. What I really need is a vector diagram showing the components of its acceleration at that instant, so if anyone could do that for me (in paint or something), that'd be great. Or just show me how to solve the problem.
Thanks.
2007-10-07
15:09:52
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2 answers
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asked by
The Rationalist
2
in
Science & Mathematics
➔ Physics