Mechanical Engineering - Engineering Mechanics - Discussion
Discussion Forum : Engineering Mechanics - Section 1 (Q.No. 21)
21.
The force required to move the body up the plane will be minimum if it makes an angle with the inclined plane __________ the angle of friction.
Discussion:
25 comments Page 3 of 3.
Patel said:
6 years ago
Agree @Bharat_kumar.
You must ignore the friction first for the min value of P with ignoring that remains
P= W sin(a) only.
As (a) become smaller P becomes smaller,
So the current answer is Option B only.
You must ignore the friction first for the min value of P with ignoring that remains
P= W sin(a) only.
As (a) become smaller P becomes smaller,
So the current answer is Option B only.
Hari Shankar said:
5 years ago
Thank you @Ritu raj that really helped.
Aman said:
5 years ago
Here we are talking about angle at which have to apply the force to minimise it.
I agree with you @Mastwaseem.
I agree with you @Mastwaseem.
Sakthi maharajan said:
4 years ago
Option: A is correct.
Just ready to move a body condition is IMPENDING MOTION (angle of inclined = angle of friction).
Static friction condition is (angle of inclined < angle of friction).
Just ready to move a body condition is IMPENDING MOTION (angle of inclined = angle of friction).
Static friction condition is (angle of inclined < angle of friction).
(2)
Sushma Jagityala said:
1 year ago
The force required to move a body up an inclined plane will be minimum, when the angle it makes with the inclined plane is less than the angle of friction. This ensures that the force applied is just enough to overcome the frictional force and initiate motion without unnecessary resistance.
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