An ovject of mass 20kg is dropped from a height of 4m. Calculate the p

1.	An ovject of mass 20kg is dropped from a height of 4m. Calculate the potential and kinetic energy at the height of 4m ,3m,2m,1 m,just above the ground.
Answer» <P>P. E=mgh M=20kg h=4m Them P. E at 4m is 20×10×4=800 3m is 20×10×3=600 2m is 20×10×2=400 1m is 20×10×1=200

An ovject of mass 20kg is dropped from a height of 4m. Calculate the potential and kinetic energy at the height of 4m ,3m,2m,1 m,just above the ground.

Answer»

<P>P. E=mgh

M=20kg

h=4m

Them P. E at

4m is 20×10×4=800

3m is 20×10×3=600

2m is 20×10×2=400

1m is 20×10×1=200

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An ovject of mass 20kg is dropped from a height of 4m. Calculate the potential and kinetic energy at the height of 4m ,3m,2m,1 m,just above the ground.

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