Asked by Sasha
a tennis ball of mass 20g is released from rest at a height of 4m above the ground. on hitting the ground,it raises to a height of 3m.find the velocity with which it hits the ground.
Answers
Answered by
Anonymous
falls 4 meters
v = -g t
h = Hi - (1/2) g t^2
g = 9.81 m/s^2
so
0 = 4 - 4.9 t^2
t^2 = 4/4.9
t = .904 seconds
v = -9.81 * .904 = -8.87 meters/second
v = -g t
h = Hi - (1/2) g t^2
g = 9.81 m/s^2
so
0 = 4 - 4.9 t^2
t^2 = 4/4.9
t = .904 seconds
v = -9.81 * .904 = -8.87 meters/second
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.