1.25x10^6J.
solution:
as we know that
K.E=½mv^2
now we have given
m=1000kg
v=60km/h
to get the S.I we have to convert velocity into m/s
so, v=(60x1000)/360
v=50/3 m/s
cording to formulate of kinetic energy,
k.E=12/mv^2
what the values of the variables in this equation
items, K.E =1/2(1000kg)(50/3)^2
=1/2(1000)(2500/9)
=1/2(2500000/9)
=1250000/9J
therefore 1250000/9=1.25x10^6J
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Answers & Comments
1.25x10^6J.
solution:
as we know that
K.E=½mv^2
now we have given
m=1000kg
v=60km/h
to get the S.I we have to convert velocity into m/s
so, v=(60x1000)/360
v=50/3 m/s
cording to formulate of kinetic energy,
k.E=12/mv^2
what the values of the variables in this equation
items, K.E =1/2(1000kg)(50/3)^2
=1/2(1000)(2500/9)
=1/2(2500000/9)
=1250000/9J
therefore 1250000/9=1.25x10^6J