Advertisements
Advertisements
प्रश्न
A car is accelerated on a levelled road and acquires a velocity 4 times of its initial velocity. During this process, the potential energy of the car :
विकल्प
does not change
becomes twice that of initial potential energy
becomes 4 times that of initial potential energy
becomes 16 times that of initial potential energy
Advertisements
उत्तर
Potential energy of an object depends only on its position above the ground and mass.. So, the potential energy of a car traveling on a levelled road does not change.
Therefore, the answer is,
(a) does not change
APPEARS IN
संबंधित प्रश्न
A mass of 10 kg is at a point A on a table. It is moved to a point B. If the line joining A and B is horizontal, what is the work done on the object by the gravitational force? Explain your answer.
Gravitational potential energy U = mass × force of gravity on unit mass × ..........
A body of mass m is moved from ground to a height h. If force of gravity on mass of 1 kg is g newton, find the work done in lifting the body.
Two bodies of same masses are placed at heights h and 2h. Compare their gravitational potential energy.
The gravitational potential energy stored in a box of weight 150 kgf is 1.5 × 104 J. Find the height of the box. Take 1 kgf = 10 N.
A weightlifter is lifting weights of mass 200 kg up to a height of 2 metres. If g = 9.8 m s−2, calculate :
work done by the weightlifter
On what factors does the gravitational potential energy of a body depend?
The energy, possessed by an object due to its position is called ______.
Which of the following is the example potential energy?
What energy is possessed by stretched rubber?
