A ball 10kg is dropped from a height of 10m find (a) the initial potential energy of the ball (b) the kinetic energy just before it reaches the ground (c) the speed just before it reaches the ground
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Assume g =10m/s^2
M=10kg
H=10kg
Initial potential energy =mgh
=10*10*10
=1000J ans a
the kinetic energy just beeaches the ground=Initial potential energy=1000J ans b)
Kinetic energy=1/2*m*v^2
1000=1/2*10*v^2
200=v^2
V=10√2m/s ansc)
M=10kg
H=10kg
Initial potential energy =mgh
=10*10*10
=1000J ans a
the kinetic energy just beeaches the ground=Initial potential energy=1000J ans b)
Kinetic energy=1/2*m*v^2
1000=1/2*10*v^2
200=v^2
V=10√2m/s ansc)
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