What is the kinetic energy of a motor car of mass 1000kg moving at a velocity of 36km/hr?
AFridiiiKhaaannn:
why do we convert km hr to m/s if unit is 1000kg ?
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kinetic energy = 1/2 × m × v^2
= 1/2 × 1000 ×36
=180000joule
= 1/2 × 1000 ×36
=180000joule
answer is 50000J , but it is when I convert km/.hr to m/s keeping kg not converting to gm .. is it possible to convert only one unit ?
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ANSWER
..........
KINECTIC ENERGY = 1 / 2 * M * V ^ 2
M = 1000
V ^2 = 36
THEREFORE
...
1 / 2 * 1000 * 36
= 50000 J
..........
KINECTIC ENERGY = 1 / 2 * M * V ^ 2
M = 1000
V ^2 = 36
THEREFORE
...
1 / 2 * 1000 * 36
= 50000 J
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