The first stage of a space vehicle consumed fuel and

Question

The first stage of a space vehicle consumed fuel and oxidizer at the rate of 1.85 x 10⁴ kg/s, with an exhaust speed of 3.10 x 10³ m/s.

(a) Evaluate the thrust produced by these engines.

(b) Determine the acceleration of the vehicle just as it lifted off the launch pad on the Earth if the vehicle's initial mass was 3.00 x 10⁶ kg.[Note: You must include the force of gravity to solve part(b).]