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प्रश्न
Is potential energy a vector or a scalar quantity?
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उत्तर
Potential energy is a scalar quantity as it has only magnitude.
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संबंधित प्रश्न
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 body at a height possesses ______.
Two bodies A and B of equal masses are kept at heights of h and 2h respectively. What will be the ratio of their potential energies?
What happens to the potential energy of a body when its height is doubled?
A weightlifter is lifting weights of mass 200 kg up to a height of 2 metres. If g = 9.8 m s−2, calculate :
potential energy acquired by the weights.
A body of mass 2 kg is thrown vertically upwards with an initial velocity of 20 m/s. What will be its potential energy at the end of 2 s? (Assume g = 10 m/s2).
If 784 J of work was done in lifting a 20 kg mass, calculate the height through which it was lifted. (g = 9.8 m/s2)
If we increase the velocity of a car moving on a flat surface to four times its original speed, its potential energy ______.
The potential energy of your body is least when you are ______.
What energy is possessed by stretched rubber?
