The rocket engine of the first Soviet experimental liquid-propellant rocket had a thrust force of 660 N.

The rocket engine of the first Soviet experimental liquid-propellant rocket had a thrust force of 660 N. The launch mass of the rocket was equal to 30 kg. What acceleration did the rocket acquire during launch?

Initial data: F (thrust force of the rocket engine of the experimental rocket) = 660 N; m (launch mass of the rocket) = 30 kg.

The acceleration that the experimental rocket acquired during launch can be expressed from the equation: m * a = F – Ft = F – m * g, whence a = (F – m * g) / m.

Calculation: a = (660 – 30 * 10) / 30 = 12 m / s2.

Answer: During the launch, the experimental rocket acquired an acceleration of 12 m / s2.