One man takes 1 minute to raise a box to a height of 1 meter and another man takes 
minute to do so. The energy of the two is:
Text Solution
Verified by ExpertsThe correct answer is:
B
: Energy required = mgh. In both cases, h is the same Hence, energy given by both is same. [It is worth noting here that powers of two men will be different as power is the energy expense par unit time and times are different here.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
A neutron travelling with a velocity v and K.E. E collides perfectly elastically head on with the n…
A ball bounces to 80% of its original height. What fraction of its mechanical energy is lost in eac…
The negative of the work done by the conservative internal forces on a system equals to the change …
A particle of mass m is moving in a horizontal circle of radius r, under a centripetal force equal …
The bob of a pendulum is released from a horizontal position If the length of pendulum is 2 m, what…
A ball of mass m is dropped from a cliff of height H. The ratio of its kinetic energy to the potent…