Question

If the kinetic energy and linear momentum of a body are equal, the velocity of the body is[ ] A) 1 ms – 1 B) 1 2 ms C) 1 1 ms 2 - D) 2 ms – 1​

Answer 1

Answer:

(D) 2 ms^-1

Explanation:

kinetic energy = 1/2mv^2

linear momentum=mv

kinetic energy =linear momentum

1/2mv^2=mv

1/0.5=v

2mv^-1