What is the kinetic energy of a #9 kg# object moving at #7/4 m/s#?

1 Answer
Andrew I.
Feb 13, 2016

#13.78125J#

Explanation:

We can us the formula:

#E = 1/2mv^2#, where #m=9kg# and #v = 7/4 ms^-1#

If we put this into the formula we get:

#E = 1/2(9)(7/4)^2 = 9/2 49/16=441/32 J=13.78125J#

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