Advertisements
Advertisements
प्रश्न
A ball of mass 0.20 kg is thrown vertically upwards with an initial velocity of 20 m s-1. Calculate the maximum potential energy it gains as it goes up.
Advertisements
उत्तर
Potential energy at the maximum height = initial kinetic energy
= `1/2` mv2
= `1/2×0.20 ×20 ×20`
= 40 J.
APPEARS IN
संबंधित प्रश्न
What kind of energy is possessed by the following?
A stretched rubber band _____________
What is the difference between potential energy and kinetic energy?
A stone is thrown upwards as shown in the diagram. When it reaches P, which of the following has the greatest value of the stone?
Name the device or machine which convert :
Chemical energy into electrical energy.
Name the device or machine which convert :
Light energy into electrical energy.
Name the device or machine which convert :
Electrical energy into light energy.
What kind of energy transformations take place at a coal-based thermal power station?
Name the energy transfers which occur when :
an electric ball rings
A ball falls to the ground as shown below :
What is the potential energy of ball at B?
Which of the following energy change involves frictional force?
