A 100 kg chesterfield is pushed up a frictionless ramp at a constant speed by a delivery person. If the ramp is inclined at 25.7° to the horizontal, what horizontal force must the delivery person apply to the chesterfield?

wilfred_cho | 04:55 Sun 26th Sep 2010 | Science

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Is it really that hard to enter the removals business these days ?

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Where did he buy a frictionless ramp from?

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A 100 kg chesterfield is pushed up a frictionless ramp at a constant speed by a delivery person. If the ramp is inclined at 25.7° to the horizontal, what horizontal force must the delivery person apply to the chesterfield?

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