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Question1

A house painter stands 3.0 m above the ground on a 5.0-m-long ladder that leans against a wall at a point4.7 m above the ground. The painter weighs 680 N and ladder weighs 120 N. assuming no friction between house and upper end of the ladder, find out the force of friction that the driveway exerts on the bottom of the ladder.

Question2

The sensor in the torso of a crash - test dummy records the magnitude of the net exterior force acting on it. If the dummy is thrown forward with a force of 130.0 N as simultaneously being hit from the side with a force of 4500.0 N, what force with sensor report?

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  • Category:- Physics
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