Answer:
Quadrupled
Step-by-step explanation:
Kinetic energy = 1/2×mv^2
m= mass
v= velocity of object
Since mass is not changed
Kinetic energy is directly proportional to v^2
When v is doubled. v^2 is increased fourfold
[( v×2) ×(v× 2)] = v^2 ×4
So Kinetic energy is increased fourfold