Advertisements
Advertisements
प्रश्न
A cyclist doubles his speed. How will his kinetic energy change: increase, decrease or remain same ?
Advertisements
उत्तर
When a cyclist doubles his speed. His kinetic energy increases four times.
K.E. = 1 / 2 Mv2
When v = doubles the K.E. quadriples
APPEARS IN
संबंधित प्रश्न
Select the correct alternatives
A ball rolling on the ground possesses
Give one relevant example for the following transformation of energy :
Electrical energy to light energy.
State the changes in form of energy while producing hydro electricity.
Give three examples of bodies possessing kinetic energy.
What is dissipation of energy?
Give one example when:
Light energy changes to chemical energy.
Give one example when:
Electric energy changes to potential energy.
What is nuclear energy? Explain the principle of producing electricity using nuclear energy is a nuclear reactor.
A body is thrown vertically upwards. Its velocity keeps on decreasing. What happens to its kinetic energy as its velocity becomes zero?
