Advertisements
Advertisements
प्रश्न
Is power a scalar or a vector quantity?
Advertisements
उत्तर
Power is a scalar quantity.
संबंधित प्रश्न
The moon is revolving around the earth in a circular path. How much work is done by the moon?
A boy weighing 25 kgf climbs up from the first floor at height 3 m above the ground to the third floor at height 9m above the ground. What will be the increase in his gravitational potential energy? (Take g = 10 N kg -1)
State the law of conservation of energy.
A force of 50 N acts on a body and moves it a distance of 4 m on horizontal surface. Calculate the work done if the direction of force is at an angle of 60° to the horizontal surface.
What is meant by a translational motion? Give one example.
When you move upstairs, do you perform some work?
Why is less effort needed to lift a load over an inclined plane as compared to lifting the load directly?
Explain, why submarines are able to dive underwater as well as a sail on the surface of the water?
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
Food grains are getting dried in the sun.
