A ball of mass 200g falls from a height of 5m. What is its kinetic energy when it just reaches the ground? (g = 9.8 ms-2)
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Hey dear ☺️☺️
Have a nyc day (^_-)
height=5m.
mass=200g (0.2 kg)
g=9.8m/s^2
∴ potential energy=mgh
= 0.2*5*9.8
= 9.8 J
∵ P.E at the highest point= K.E at the lowest point (when it is just about to hit the ground)
∴ K.E energy will be= 9.8 J
i hope that this will help u..........................
Have a nyc day (^_-)
height=5m.
mass=200g (0.2 kg)
g=9.8m/s^2
∴ potential energy=mgh
= 0.2*5*9.8
= 9.8 J
∵ P.E at the highest point= K.E at the lowest point (when it is just about to hit the ground)
∴ K.E energy will be= 9.8 J
i hope that this will help u..........................
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1
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