Request a call back

Join NOW to get access to exclusive study material for best results

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, 02:09: PM
answered-by-expert 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, 04:09: PM
CBSE 11-science - Physics
Asked by rustampathan | 25 Feb, 2024, 06:39: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
t
question image
Asked by rkdubey133 | 19 Jan, 2024, 10:03: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by priyankaprajapti81 | 04 Nov, 2023, 10:47: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by koushtubhroy | 20 Dec, 2022, 07:36: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by rajdhan.yadav187350 | 13 Nov, 2018, 11:36: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by Topperlearning User | 12 Aug, 2014, 12:58: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by Topperlearning User | 12 Aug, 2014, 01:02: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by Topperlearning User | 12 Aug, 2014, 01:27: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by Topperlearning User | 12 Aug, 2014, 01:33: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by Topperlearning User | 12 Aug, 2014, 01:35: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×