Help please the question is in the picture

Physics

1 answer:

Lemur [1.5K]2 years ago

7 0

The kinetic energy bc the energy is independent of the gravitational acceleration, and it depends only on the speed and mass. So the last answer

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$v=10.777m/s$

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$E_{kinectic}=P_{potential}\\1/2mv^{2}=m*9.81(31.0-25.08)\\(1/2)v^{2}=9.81(31.0-25.08)\\0.5v^{2}=58.07\\v^{2}=58.07/0.5\\v=\sqrt{58.07/0.5}\\ v=10.777m/s$