A two-stage rocket is launched with a payload on the top (the stages are denoted by different colors in the model). Both

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A Two Stage Rocket Is Launched With A Payload On The Top The Stages Are Denoted By Different Colors In The Model Both 1 (32.07 KiB) Viewed 48 times

A two-stage rocket is launched with a payload on the top (the stages are denoted by different colors in the model). Both stages are 8500 kg, which includes 6800 kg of fuel, and the attached payload is 680 kg. The fuel is a liquid oxygen and kerosene mix which burns at a rate of 235 kg/s with a relative velocity of 3600 m/s. The rocket is fired vertically and we'll assume gravity to remain constant. The velocity when the first stage finishes is The velocity when the second stage finishes is