Advertisements
Advertisements
Question
Two toy-cars A and B of masses 500 g and 200 g respectively are moving with the same speed. Which of the two has the greater kinetic energy?
Advertisements
Solution
The toy car ‘A’ of mass 500 gm has the greater kinetic energy. This can be explained as:
K.E. = 1/2 Mv2
Here, both the cars are moving with the same speed. So the car with greater mass will possess greater kinetic energy.
APPEARS IN
RELATED QUESTIONS
Give one example of a body that has potential energy, due to its position at a height.
A body of mass m falls down through a height h. Obtain an expression for the work done by the force of gravity.
State two characteristic which a source of energy must have.
Name three non-renewable sources of energy.
State two advantages of using nuclear energy for producing electricity.
Name the form of energy in which potential energy can change.
What kind of energy is possessed in a situation when?
A shooting arrow.
What is the form of that graph between
(i) K.E. and velocity for a constant mass?
(ii) K.E. and mass for a constant velocity?
Can you tell?
Describe one natural chain of transformation of energy.
