Physics
posted by Keith .
A house painter stands 3 m above the ground on a 5.3mlong ladder that leans against the wall at a point 4.7 m above the ground. The painter weighs 638 N and the ladder weighs 143 N. Assuming no friction between the house and the upper end of the ladder, find the force of friction that the driveway exerts on the bottom of the ladder.
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