Desde que altura debes de lanzar una canica de 50g para que adquiera una energia de 100j

204 m

Explanation:

When the marble is dropped from a certain height, its gravitational potential energy converts into kinetic energy. So the kinetic energy gained is equal to the variation of gravitational potential energy:

where

m is the mass of the marble

g = 9.8 m/s^2 is the acceleration of gravity

is the change in height

In this problem, we have

m = 50 g = 0.05 kg

Solving the formula for , we find the necessary height from which the marble should be dropped:

no. dot product   =0 when vecs at right angles