Amodel rocket with a mass of 0.181 kg is launched into the air with an initial speed of 92 m/s. how much kinetic energy will the rocket have at a height of 164 m? assume there is no wind resistance. 634 j 444 j 747 j 303 j

We can solve the problem by using conservation of energy.

Initially, the total energy of the rocket is only kinetic energy. This is equal to


As the rocket goes higher, part of this kinetic energy converts into potential energy. Indeed, at the height h=164 m, the total energy of the rocket is the sum of the kinetic energy (at the new speed ) and the potential energy:


For the  conservation of energy, , so we can write:

and so we can find the kinetic energy at height h=164 m:

Ithink the answer is d i hope it my friend message me if i’m wrong and i’ll change my answer and fix it for you