Physics, 17.09.2019 03:20, Govind3793
a rubber ball is shot straight up from the ground with speed v0. simultaneously, a second rubber ball at height h directly above the first ball is dropped from rest.
part a. at what height above the ground do the balls collide? your answer will be a symbolic expression in terms of v0, h, and g .
part b.
what is the maximum value of h for which a collision occurs before the first ball falls back to the ground?
express your answer in terms of the variable v0 and appropriate constants.
part c.
for what value of h does the collision occur at the instant when the first ball is at its highest point?
express your answer in terms of the variable v0 and appropriate constants.
note: can you work the problem out and not just give me the equations for each.
Answers: 2
Physics, 21.06.2019 22:20, ayoismeisalex
1400 kg car has a speed of 27 m/s. if it takes 7 s to stop the car, what is the impulse and the average force acting on the car?
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Physics, 22.06.2019 14:30, sross8799
Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?
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