Asked by Anonymous

A 9.50 {\rm g} bullet has a speed of 1.40 {\rm km/s}.
What is its kinetic energy in joules?
What is the bullet's kinetic energy if its speed is halved?
If its speed is doubled?
Answered by drwls
You must know how to calculate kinetic energy by now.

K.E. = (1/2) M V^2

Make sure V is in m/s and M is in kg. That will give you the answer in Joules.

The other parts of the question I am sure you can figure out.
Answered by Anonymous
rdfff
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