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Asked by courteney4 to James, Marcus, Martin, Rob, Suzanne on 16 Mar 2012.
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James Boone answered on 15 Mar 2012:
Upthrust simply means a force that acts on an object away from the Earths surface, such as that which causes a rocket to head into space. I’m not sure of the specific “other” word you are referring to, but possibly propulsion?
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Marcus Gallagher-Jones answered on 16 Mar 2012:
Tis buoyancy and it be what keeps boats on the water.
Comments
courteney4 commented on :
Yes thank you.
kaurprincess commented on :
when in the air, its air resistance
Marcus commented on :
Hi kaurprincess fraid not it’s still called the same thing in the air. Air resistance is the deceleration due to friction of a body moving through air molecules.