A person exerts a horizontal force of 80 N on the end of a door 78 cmwide.What is the magnitude of the torque if the force is exerted perpendicular to the door? Express your answer using two significant figures.[τ|| τ |=            m⋅NSubmitRequest AnswerPart B What is the magnitude of the torque if the force is exerted at a 60.0∘angle to the face of the door? Express your answer using two significant figures.|τ|| τ |=       m⋅N

Question
Asked Oct 30, 2019
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A person exerts a horizontal force of 80 N on the end of a door 78 cm
wide.

What is the magnitude of the torque if the force is exerted perpendicular to the door?
Express your answer using two significant figures.

[τ|| τ |=            m⋅N

SubmitRequest Answer
Part B
What is the magnitude of the torque if the force is exerted at a 60.0∘
angle to the face of the door?
Express your answer using two significant figures.

|τ|| τ |=       m⋅N

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Expert Answer

Step 1

(a) The torque is...

(78x102 m) (80N) sin 90°
perpendicular means e-90]
= 62 N
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(78x102 m) (80N) sin 90° perpendicular means e-90] = 62 N

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