Question

Q4. A weightlifter lifted up a barbell of
1450 kg to a neight of 1.5m & hold it
without raising of lowering it. (Assume
a. How much work is done by 10 m/s)
him in lifting the barbell up?
6. How much work did he do in just
holding it?
c. Why is he getting tired in just holding​

Answer 1

1 true
2 true
3 false
It is the correct answer