Home
Class 9
PHYSICS
Find the kinetic energy of a ball of 250...

Find the kinetic energy of a ball of 250 g mass, moving at a velocity of 40 cm/s.

Text Solution

Verified by Experts

Mass of the ball, m = 250 g = 0.25 kg
Speed of the ball, v = 40 cm/s s = 0.4 m/s
Kinetic energy,
`K.E. = (1)/(2) (0.25) xx (0.4)^(2) = 0.02J`
Promotional Banner

Topper's Solved these Questions

  • WORK AND ENERGY

    NCERT TAMIL|Exercise Let us Improve our learning (Reflections on concepts)|4 Videos

  • WORK AND ENERGY

    NCERT TAMIL|Exercise Let us Improve our learning (Application of concepts)|5 Videos

  • UNIVERSE

    NCERT TAMIL|Exercise Problem|2 Videos

Similar Questions

Explore conceptually related problems

What will be the wavelength of a ball of mass 0.1 kg moving with a velocity of 10 ms^(-1) ?

What is the kinetic energy of a 10kg mass moving at a speed of 30 km h^(-1) in calorie?

What is kinetic energy ? Derive an expression for the kinetic energy of a body of mass .m. moving at a speed .v.. (AS_(1))

The de-Broglie wavelength of a tennis ball of mass 60g moving with a velocity of 10 ms^(-1) is approximately (planck's constant, h = 6.63 xx 10^(-34) Js)

Estimate de Broglie wavelength is nm associated with an iron ball of mass 66 g moving with a velocity of 2.5xx10^(5)ms^(-1) .

A macroscopic particle of mass 100 g and moving at a velocity of 100 cm s^(-1) will have a de Broglie wavelenght of

The kinetic energy of a body of mass 4 kg and momentum 6 N-s will be:

A uniform disc of mass 100 g has a diameter of 10 cm. Calculate the total energy of the disc when rolling along a horizontal table with a velocity of 20 cm s^(-1) . (take the surface of table as reference).