How fast is a 180 kg motorcycle traveling if it has 36000 j of kinetic energy? ?

how much kinetic energy does an 80 kg football player have if he is running at 3 m/s? ?

20 ms⁻¹

360 J

Explanation:

Kinetic energy is the energy possessed by a moving object solely due to its motion.

You can get the K.E. of an object using the equation,

K.E. =  (1/2)mv² where all terms in usual meaning

So you get,

K.E. = 36000 =  (1/2)×180×v²

v = 20 ms⁻¹

Also,

K.E. =  (1/2)×80×3² = 360 J

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