Zero Work
Trending Questions
A man pushing against a wall does not do any work. Explain briefly.
How much work is done by a man who tries to push the wall of a house but fails to do so?
Can we apply work energy theorem in non-Inertial frames of reference ?
Does tension do work on a pendulum
- Positive
- Negative
- Zero
- None of these
A man pushes a wall and fails to displace it. He does
Negative work
Positive but not maximum work
No work at all
Maximum work
A person holds a bundle of hay over his head for and gets tired. Has he done some work or not? Justify your answer.
- Always greater than zero
- Always equal to zero
- Always less than zero
- Can have any finite value
Give an example of a situation where work done is zero.
A girl standing on one leg during an exercise does a lot of work.
- True
- False
A Man moves on a straight horizontal road with a block of 2kg in his hand. If he covers a distance of 20m with constant velocity of 1m/s. Find work done by man on block during motion.
400J
40J
zero
-10J
- 0 (No Work)
- 1
- 2
- 3