A weight lifter is holding a weight of 100 kg on his shoulders for 45 s, the amount of work done by him in joules is
A. 4500
B. 100
C. 45
D. zero
Answer:D
A weight lifter is holding a weight of 100 kg on his shoulders for 45 s, the amount of work done by him in joules is
A. 4500 B. 100 C. 45 D. zero