Tue November 15, 2011 By:

mam half yearly exam

Expert Reply
Wed November 16, 2011



The kinetic energy of an object depends on how fast it’s moving and also on its mass. The precise formula for kinetic energy in terms of speed and mass  is

Kinetic energy Ek = 1/2



Ek represents kinetic energy and represents speed (or velocity).

Kinetic energy depends only on the magnitude of the velocity , not on its direction.
=  1/2
(mass) × (speed)2,

× mv2,
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