the kinetic energy of an object of mass M, moving with a velocity of 5 M per second is 255 what will be its kinetic energy when the velocity is doubled? what will be its kinetic energy when its velocity is increased three times?
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Hi Mate!!
255 = 1 / 2 ( M ) ( 5 ) ² ........ equation 1
E'k = 1 / 2 ( M ) ( 10 )² ......... equation 2
Dividing both the two equations.
E'k = 255 × 100 / 25
E'k = 1020 joule
........................................................................
255 = 1 / 2 ( M ) ( 5 )²........ equation 1
E"k = 1 / 2 ( M ) ( 15 )²......... equation 2
Dividing both the two equations
E"k = 2601 joule
255 = 1 / 2 ( M ) ( 5 ) ² ........ equation 1
E'k = 1 / 2 ( M ) ( 10 )² ......... equation 2
Dividing both the two equations.
E'k = 255 × 100 / 25
E'k = 1020 joule
........................................................................
255 = 1 / 2 ( M ) ( 5 )²........ equation 1
E"k = 1 / 2 ( M ) ( 15 )²......... equation 2
Dividing both the two equations
E"k = 2601 joule
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