Answer:
c) triple(3x)
Explanation:
The equation for kinetic energy is:
[tex]k=\frac{1}{2}mv^2[/tex]
if the mass triples we will have that the new kinetic energy [tex]k'[/tex] is:
[tex]k'=\frac{1}{2}(3m)v^2[/tex]
which can also be written as:
[tex]k'=3(\frac{1}{2}mv^2)[/tex]
and [tex]\frac{1}{2}mv^2[/tex] is the original kinetic energy [tex]k[/tex], so:
[tex]k'=3(k)[/tex]
⇒the new kinetic energy is three times the original kinetic energy.
the answer is: his kinetic energy will triple (3x) which is option c.
