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
What is the source of heat contained in geothermal energy?
A body of mass m falls down through a height h. Obtain an expression for the work done by the force of gravity.
State different forms of potential energy and give one example of each.
State the energy changes in the following case while in use:
an electric toaster.
State two advantages of producing electricity from solar energy.
How much electric power is generated in India using the wing energy?
A ball of mass 0.5 kg slows down from a speed of 5m/s-1 to that of 3m/s-1. Calculate the change in kinetic energy of the ball.
Write the type of energy possessed in the following case:
A bent bow
A body of mass m is taken from a height h to 2h. What is the increase in its potential energy?
What are the small particles that can be seen in a beam of light that enters a dark room?
