Question

MASCM ,
The kinetic
energy of object
Moving with
velocity of 5 m/s is. 25 J
will be its kinetic energy
when
velocity is doubled ? What
be its kinetic
when 4.
energy
inccreased
velocity es
916
time ?​

Answer 1

Answer:

Given, velocityofobject,v=5ms−1;

kineticenergyofanobject,EK=25J

EK=21mv2 or 25=21×m×(5)2

or m=2550=2kg

When the velocity triples,

EK=21mv2=21×2×(15)2=225J