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Beast3dgar
21.02.2022 •
Physics
A ball is dropped from height of 20m at the same instant and the ball is thrown up from the ground with speed 20m/s when and where will ball meet
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Ответ:
s = ut + 1/2 gt^2
s = 0 + 1/2 (-10) 1^2
s = - 5 m from starting point
After 1 second, the thrown ball has risen:
s = ut + 1/2 gt^2
s = 20 (1) + 1/2 (-10) 1^2
s = 20 -5 m
s = + 15 m from starting point
The two balls meet one second after release and meet at a point 15 meters above ground.
Ответ:
Anthony will be warmer after the game because he is wearing a black shirt. Dark colors absorb more thermal energy than light colors.
Explanation: