Torque due to a force is maximum on a door if force is applied *
(a) parallel to the door
(b) perpendicular to the door
(c) at 45° to the door
(d) at 60° to the door
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10
Answer:
perpendicular to the door
Explanation:
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b) perpendicular to the door.
We know that,
Torque = r F sin Φ
Torque will be maximum,
when sin Φ = max=+1 .
Therefore Φ = 90 ° i.e when the force is applied in a direction perpendicular to door the torque will be maximum.
hope it helps..
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