Advertisements
Advertisements
प्रश्न
Show that the quantity 2K/v2 has the unit of mass, where K is the kinetic energy of the body.
Advertisements
उत्तर
Kinetic Energy, K = `1/2 mv^2`
where, m - Mass and V - Linear Velocity
We may now use the equation of a kinetic energy (K) in this `((2k)/V^2)` formula, we get
`therefore (2K)/V^2 = (2 xx 1/2 m V^2)/V^2 ...("Substitute" K = 1/2 mV^2)`
`therefore (2K)/V^2` = m
Therefore, the quantity.
`(2K)/V^2` will have the unit of mass m, which is kilogram (kg).
APPEARS IN
संबंधित प्रश्न
State one important advantage and disadvantage each of using nuclear energy for producing electricity.
Fill in the blank
The energy possessed by a body due to its position is called ________ energy.
Give one example to show the conversion of potential energy to kinetic energy when put in use.
A boy of mass m climbs up a staircase of vertical height h.
(a) What is the work done by the boy against the force of gravity?
(b) What would have been the work done if he uses a lift in climbing the same vertical height?
Name the type of energy (kinetic energy K or potential energy U) possessed in the following case:
A piece of stone placed on the roof.
Select the renewable and non-renewable sources of energy from the following:
Wood
State whether a solar cell produces a.c. or d.c.
Name the energy change for the following:
pendulum
You might have seen some beautiful fireworks during Diwali. It is an example of the transformation of ______ energy into ______ energy.
Name the type of energy (kinetic energy K or potential energy U) possessed in the following case:
A moving cricket ball
