Advertisements
Advertisements
प्रश्न
Is it possible that no transfer of energy may take place even when a force is applied to a body?
Advertisements
उत्तर
Yes, when force is normal to displacement, no transfer of energy takes place.
APPEARS IN
संबंधित प्रश्न
State the condition when the work done by a force is positive. Explain with the help of examples.
Differentiate between work and power.
Name the quality which is measured in kWh.
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.
What is meant by a rotatory motion? Give one example.
In which one of the following cases is the work done more? When the angle between the direction of motion and that of the force is (i) 90° (ii) 0°.
How is 1 kgf related to the SI unit of force?
Give the units of couple.
State the S.I. and C.G.S. units of energy. How are they related?
