Question

WILL GIVE BRAINLIEST PLEASE I NEED THIS! A 100-kg projectile crashes through a castle wall with a kinetic energy of 266.45 kJ. What was the speed of the projectile?

Answer 1

K.E.=
$\frac{1}{2} m {v}^{2}$
so just sub in the info you are provided with.
266.45x10^3=0.5×100xv^2
V is 73.

Answer 2

Answer:

The answer is d which is 73 m/s

Explanation: