Question

Calculate Kinetic energy of the object of mass = 7 Kg moving in a straight line with a velocity of 12 m/s.

(a) 504 J

(b) 502 J

(c) 503 J

(d) 509 J

I had been asked this question in quiz.

The query is from Solid-State Switching Circuits in chapter Introduction to Solid-State Switching Circuits of Electric Drives

Answer 1

Right choice is (a) 504 J

To explain I would say: The Kinetic energy of the object of mass = 7 Kg moving in a straight line with a velocity of 12 m/s is .5×m×v^2 = .5×7×12×12 = 504 J.