If an object with a mass of #12 kg # changes speed from #3 m/s# to #2 m/s#, by how much does its kinetic energy change?

1 Answer
Jan 16, 2016

Answer:

increase = 42j

Explanation:

#k.e =1/2mv^2#
#k.e1=1/2 12* 3^2#
=54#J#
k.e2=x6x16
=96#J#
increase=96-54=42J