Posted by maria on Wednesday, January 26, 2011 at 5:22pm.
A 5.50 104 kg space probe is traveling at a speed of 11000 m/s through deep space. Retrorockets are fired along the line of motion to reduce the probe's speed. The retrorockets generate a force of 4.00 105 N over a distance of 2600 km. What is the final speed of the probe?

physics help!!  drwls, Wednesday, January 26, 2011 at 5:44pm
The decrease in momentum, M*(V1  V2)
is equal to the retrorocket thrust force times the time.
Solve for V2.

physics help!!  maria, Wednesday, January 26, 2011 at 5:50pm
it doesn't give me the time...
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