CBSE Class 11-science Answered
Why the door cannot be rotated by applying force in a direction parallel to the plank of the door?
Asked by Topperlearning User | 12 Aug, 2014, 14:09: PM
Expert Answer
We know that
= r Fsin Φ ----------------------------------------(1)
When, force is applied in a direction parallel to
.
Φ = 0° or 180°
Therefore sin Φ=0
Substituting in eq(1), we get
Torque () = 0
Therefore, Torque of the force is zero. So, the door cannot be rotated by applying force in a direction parallel to the plank of the door.
Answered by | 12 Aug, 2014, 16:09: PM
Concept Videos
-
Torque - Exam Decoded
This video contains practice questions based on torque and expert tips. -
Systems of Particles and Rotational Motion
This video contains numerical problems based on torque for practice. -
Systems of Particles and Rotational Motion
This video explains torque, magnitude of torque and the right hand rule on ...
CBSE 11-science - Physics
Asked by rustampathan | 25 Feb, 2024, 18:39: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by priyankaprajapti81 | 04 Nov, 2023, 22:47: PM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by koushtubhroy | 20 Dec, 2022, 07:36: AM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by rajdhan.yadav187350 | 13 Nov, 2018, 11:36: AM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by Topperlearning User | 12 Aug, 2014, 12:58: PM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by Topperlearning User | 12 Aug, 2014, 13:02: PM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by Topperlearning User | 12 Aug, 2014, 13:27: PM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by Topperlearning User | 12 Aug, 2014, 13:33: PM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by Topperlearning User | 12 Aug, 2014, 13:35: PM
ANSWERED BY EXPERT
