A man throws bricks to a height of 12 m where they reach with a speed of 12 m/s. If he throws the bricks such that they just reach that height. What percentage of energy will he save?

A man throws bricks to a height of 12 m where they reach with a speed

1.	A man throws bricks to a height of 12 m where they reach with a speed of 12 m/s. If he throws the bricks such that they just reach that height. What percentage of energy will he save?
A.	19%
B.	0.26
C.	Grey cast iron
D.	0.57
Answer» D. 0.57

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A man throws bricks to a height of 12 m where they reach with a speed of 12 m/s. If he throws the bricks such that they just reach that height. What percentage of energy will he save?

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