Asked by barbara
A ball is thrown straight up with enough speed so that it is in the air for several seconds. Assume the positive direction is upwards. What is its velocity 1.5s before it reaches its highest point?What is the change in its velocity, v, during this 1.5-s interval? What is its velocity 1.5s after it reaches its highest point?What is the change in velocity, v, during this 1.5-s interval?
Answers
Answered by
Scott
the ball is uniformly accelerated by gravitational force
the velocity is zero at the peak
1.5 s before the peak, the velocity is
... 1.5 * g upward
1.5 s after the peak, the velocity is
... 1.5 * g downward
the velocity is zero at the peak
1.5 s before the peak, the velocity is
... 1.5 * g upward
1.5 s after the peak, the velocity is
... 1.5 * g downward
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