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sumitshekhar348
03.08.2020 •
Physics
38.A student pushes a 0.15 kg box down against a spring doing 25 J of work on the spring. The student releases the box which launches the box into the air. What is the maximum height reached by the box assuming negligible frictional forces
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Ответ:
Explanation:
Potential energy stored in the spring = 25 J
This energy is converted into gravitational potential energy . If h be the height attained
gravitational potential energy = mgh
mgh = 25
.15 x 9.8 x h = 25
h = 17 m
Ответ:
Distance.
(Its wouldn’t be speed because it isn’t over a certain amount of time, not direction because it doesn’t say anything)