Question

Calculate workdone by a student in lifting a 0.5kg book from the ground
and keeping it on a shelf of 3m height.
a) 14.7J
b) 7.30
c) 6.23
d) 4.5J​

Answer 1

Work done =mgh

=0.5×9.8×3

=14.7

So, correct option is A

Answer 2

Step-by-step explanation:

option a is the correct answer