Advertisements
Advertisements
प्रश्न
Justify the statement. “Power can be expressed as the product of force and velocity.”
Advertisements
उत्तर
`"Power" ="Work"/"Time"=("Force × Displacement")/"Time"`
`="Force"×"Displacement"/"Time"`
= Force × Velocity.
(Since rate of change of displacement is velocity).
संबंधित प्रश्न
State two factors on which power spent by a source depends. Explain your answer with examples.
One horse power is equal to ______.
Name the quality which is measured in Wh.
What do you mean by uniform circular motion?
How much force is applied on a body when 150 J of work is done in displacing the body through a distance of 10 m in the direction of the force?
A bullet fired against a window glass pane makes a hole in it without any cracks while a stone striking the same glass pane smashes it; explain with reason.
State the practical unit mainly used in mechanical engineering and write down its equivalent in watt.
Relate 1 KWh (kilowatt hour) with joule.
For the following scenario, state whether the work done by gravity is positive, negative, or zero.
A person climbs a ladder.
