Question

A 2300 kg rocket shuts off its engine 494km above earth's surface. Its velocity at burnout is 3000 m/s directly upward. Ignoring air resistance, what maximum height will the rocket reach?

Answer 1

`530035color(white)im`

Explanation:

`2aS=v^2-u^2`

`=>S=(v^2-u^2)/(2a)`

Plug in the values:

`S=(0^2-3000^2)/(2xx8.49)`

`S=-9000000/16.98`

`S=530035color(white)im`