Question

The Rocket Club is planning to launch a pair of model rockets. To build the rocket, the club needs a rocket body paired with an engine. The table lists the mass of three possible rocket bodies and the force generated by three possible engines.


Based on Newton’s laws of motion, which combination of rocket bodies and engines will result in the acceleration of 40 m/s2 at the start of the launch?

Body 3 + Engine 1
Body 2 + Engine 2
Body 1 + Engine 2
Body 1 + Engine 1

Answer 1

I don’t see the table with the masses and forces. To pick the correct combination I need the three rocket body masses and the three engine forces.

Method: use Newton’s 2nd law a = F / m. For each listed pair compute acceleration = (engine force) / (body mass). The pair whose result equals 40 m/s² is the answer.

If you paste the table (masses for Body 1, Body 2, Body 3 and forces for Engine 1, Engine 2, Engine 3) I’ll compute each option and tell you which combination gives 40 m/s².