Velocity and space and force over distance

AI Thread Summary
To find the final speed of the space probe after firing the retrorockets, apply the work-energy theorem, which relates the work done by the force to the change in kinetic energy. The force generated by the retrorockets is 5.0e5 N, acting over a distance of 2500 km. Calculate the work done by the retrorockets, then determine the change in kinetic energy to find the final speed. The initial speed of the probe is 10000 m/s, and its mass is 5.5e4 kg. Using these values will yield the final speed after the force has acted.
copitlory8
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Homework Statement


A 5.5e4kg space probe is traveling at a speed of 10000 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 5.0e5N over a distance of 2500 km. What is the final speed of the probe?


Homework Equations


velocity=10000
Force=
5e5
displacement=2500

The Attempt at a Solution


I just know the kinematics equations. BUt I have no idea how to start.
 
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copitlory8 said:
A 5.5e4kg space probe is traveling at a speed of 10000 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 5.0e5N over a distance of 2500 km. What is the final speed of the probe?

Hi copitlory8! :smile:

You have force and distance, so use the work-energy theorem. :wink:
 
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