How are the momentum and kinetic energy of an object related?
The momentum of an object is given by p = mv, where p = momentum, m = mass of object and v = velocity.The kinetic energy of an object is given by KE = 1/2 * mv2 where KE is the kinetic energy. Therefore to convert from momentum to kinetic energy, one must multiply the momentum of the object by 0.5v, as KE can also be written as KE = 0.5 (mv)v (= 0.5p*v).
KC
Related Physics IB answers
All answers ▸How can I derive the energy of an electron using the electron in a box model?
Why is centripetal acceleration directed inwards to the centre of the circle during centripetal motion? If I’m in a car while it’s cornering, I seem to be pushed outwards away from the centre, not inwards.
If a body is projected from the ground at the angle of 30 degrees to the horizontal with the initial velocity of 20 m/s, what maximum height and range is it going to reach?
For a body of mass m orbiting a body of mass M with radius of orbit r, what is the minimum velocity that m needs in order to escape M's gravitational pull and end up infinitely far away from M?