Advertisements
Advertisements
प्रश्न
What is the work done when the force on the object and the displacement of the object are perpendicular to each other?
Advertisements
उत्तर
The work done is zero because:
Work done = force x displacement x cos 0
Now, since 0 = 90°; cos 0 = and hence work done is equal to zero.
APPEARS IN
संबंधित प्रश्न
One horse power is equal to ______.
Name the quality which is measured in eV
Is it possible that no transfer of energy may take place even when a force is applied to a body?
State the factors on which moment of force about a point depends.
What is a centripetal force?
Name the force needed for circular motion. What is the direction of the force?
A boy takes 3 minutes to lift a 20 litre water bucket from a 20 m deep well, while his father does it in 2 minutes.
How much work each does? Take density of water = 103 kg m-3 and g = 9.8 N kg-1.
How is 1 kgf related to the SI unit of force?
What is the S.I. unit of work? Define it.
What happens to the power if the time for doing work is reduced from t second to t/10 second?
