Question

If the block gets a height of 0.2 m using some of the kinetic energy what is the kinetic energy of the block after reaching the extreme point?

(a) 0.01 J

(b) 0.02 J

(c) 0.03 J

(d) 0.04 J

The question was asked at a job interview.

This is a very interesting question from Energy Conservation topic in portion Miscellaneous of Chemical Process Calculation

Answer 1

The correct choice is (d) 0.04 J

Explanation: K.E. + P.E. = Total Energy = Constant.