A body accelerates uniformly from rest to a velocity of 1 in 15 seconds. The kinetic energy of the body will be when ' ' is equal to [Take mass of body as ]
Get Answer
The uniform acceleration is
Let be the velocity at kinetic energy
therefore or
Using at
A bomb of mass explodes into the pieces of masses and . The velocity of mass is . The kinetic energy of mass in joule is
96
384
192
768
An athlete in the olympic games covers a distance of 100 in . His kinetic energy can be estimated to be in
the range
The average speed of the athelete
K.E.
If mass is then, K.E.
If mass is then,
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