- #1
clownbaby
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The space shuttle is moving in a circular orbit with a speed of 7.8km/s and a period of 87min. In order to return Earth, the shuttle fires its retro engines opposite to its direction of motion. The engine provide a deceleration of 6m/s^2 that is constant in magnitude and direction. What is the total acceleration of the shuttle?
can't seem to understand how to start solving it. don't i need the radius of orbit?
can't seem to understand how to start solving it. don't i need the radius of orbit?