Advertisements
Advertisements
प्रश्न
A car is accelerated on a levelled road and attains a velocity 4 times of its initial velocity. In this process the potential energy of the car
विकल्प
does not change
becomes twice to that of initial
becomes 4 times that of initial
becomes 16 times that of initial
Advertisements
उत्तर
does not change
Explanation:
In the given process, the potential energy of the car does not change as it does not depend on velocity.
APPEARS IN
संबंधित प्रश्न
Define the term energy.
The power of a motor is 40 kW. At what speed can the motor raise a load of 20,000 N?
How much work is done when a body of mass m is raised to a height h above the ground?
Name five appliances or machines which use an electric motor.
Complete the following sentences:
Joule is the unit of .......
If an electric bulb of 100 watt is lighted for 2 hours, how much electric energy would be consumed?
What is work?
A uniform chain of length 2 m is kept on a table such that a length of 60 cm hangs freely from the edge of the table. The total mass of the chain is 4 kg. What is the work done in pulling the entire chain on the table?
