Question

An object's velocity/speed increases, multiplied by a factor of 7. What factor would its Kinetic Energy increase by?

Answer 1

Answer:

k.E= 49 ms^-2

Explanation:

k.E= 1/2 mv^2

From that formula of k.E

K.E is directly proportional to the ( velocity)^2

K.E directly proportional to (7)^2

so that k.E increase by 49