Homework Help: Physics

Posted by Physics on Friday, August 28, 2009 at 5:41am.

A model rock is shot into the air. Once it starts to fall a parachute is deployed. Draw a free body diagram of the rocket with the parachute deployed

ok well there is gravity
does the parachute exert a force upward? onto what? what do i call this force?

Physics - Dr Russ, Friday, August 28, 2009 at 5:54am
Force down is mg where m is the mass and g is the acceleration due to gravity

Force up is Air resistance
Physics - drwls, Friday, August 28, 2009 at 6:25am
A free body diagram of the rocket with parachute attached will have an air resistance force upwards (when falling) and a weight force (m g) downwards. There will be a lesser air resistance force on the rocket than on the psrachute.

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