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संबंधित प्रश्न
A satellite revolves around the earth in a circular orbit. What is the work done by the force of gravity? Give reason.
A boy weighing 350 N climbs up 30 steps, each 20 cm high in 1 minute, Calculate:
- the work done and
- power spent.
An ox can apply a maximum force of 1000 N. It is taking part in a cart race and is able to pull the cart at a constant speed of 30 ms-1 while making its best effort. Calculate the power developed by the ox.
Name two places in india where electricity is generated from nuclear power plants.
An engine does 54,000 J of work by exerting a force of 6000 N on it. What is the displacement in the direction of the force?
Work done by a force is equal to the product of ....... and ....
Give the units of couple.
State the condition when the work done by the force is positive
Calculate the work done when:
A car is moved on a rough road through 30 m against a frictional resistance of 75 N.
For the following scenarios, state whether the work done by gravity is positive, negative, or zero.
A car in neutral gear is coming down the slope.
