Two children push on opposite sides of a door during play. Both push horizontally and perpendicular to the door. One child pushes with a force of 175 N at a distance of 0.800 m from the hinges, and the second pushes at a distance of 0.450 m. What force must the second exert to keep the door from moving? Assume friction is negligible. ...................N

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Two children push on opposite sides of a door during play. Both push horizontally and perpendicular to the door. One child pushes with a force of 175 N at a distance of 0.800 m from the hinges, and the second pushes at a distance of 0.450 m. What force must the second exert to keep the door from moving? Assume friction is negligible.
...................N

Expert Solution
Step 1

F1=175N

R1=0.800 m

F2=?

R2=0.450 m

This pushing of doors will result in torque and if it is required to keep the door from moving. Then net torque acting must be equal to zero.

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