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प्रश्न
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
A sailboat is moving due to wind energy.
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उत्तर
- Wind energy applies a force on the sailboat to push it in the forward direction.
- Therefore, there is a displacement in the boat in the direction of force.
- Hence, work is done by wind on the boat.
संबंधित प्रश्न
A pair of bullocks exerts a force of 140 N on a plough. The field being ploughed is 15 m long. How much work is done in ploughing the length of the field?
Fill in the blank with suitable word :
Work is measured as a product of __________ and __________
When is the work done by a force on a body : (a) positive, (b) negative, and (c) zero?
Write an expression for work done by a force depends?
The weights of two bodies are 2.0 N and 2.0 kgf respectively what is the mass of each body?
What is work?
State whether work is done or not, by writing yes or no, in the following case:
A man pushes a wall.
