A car of mass 1000kg at an average speed of 16m/s.where does the energy of the car come from?and what is the kinetic energy of the car?

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Answer 1 · 2018-04-11T13:42:29

From the kinetic energy caused by the car's movement, and the energy is #128,000# joules or #128# kilojoules.

We find the kinetic energy of the object by the equation,

#"KE"=1/2mv^2#

#m# is the mass of the object in kilograms

#v# is the velocity of the object in meters per second

And so, we got:

#"KE"=1/2*1000 \ "kg"*(16 \ "m/s")^2#

#=500 \ "kg"*256 \ "m"^2"/s"^2#

#=128000 \ "kg m"^2"/s"^2#

#=128000 \ "J"#