General Knowledge - Physics - Discussion

Discussion :: Physics - Section 1 (Q.No.60)

60. 

ML2T-2 is the dimensional formula for

[A]. moment of inertia
[B]. pressure
[C]. elasticity
[D]. couple acting on a body

Answer: Option D

Explanation:

No answer description available for this question.

Govind said: (Feb 28, 2012)  
Please give some reasons.

Asha Stephen said: (May 11, 2012)  
Formula for Couple acting on body (T)=F*d
=Ma*d [F=M*a]
=M*dv/t*d [a==(vf-vi)/t)]
=M*(d/t/t)*d
=Md^2/t^2
=ML^2T^-2

Rishi said: (May 13, 2012)  
Force =m*a
and couple= force*distance
units of force =m*l*t^-2
and couple= ml^2t^-2.

Linda said: (Apr 26, 2013)  
Why are those formulas so complicated?

Debjyoti Bandyopadhyay said: (Nov 8, 2013)  
Couple = Force*distance between the force = Work.

Dimension of Work is ML^2T^-2.

Nitsh Kumar said: (May 15, 2014)  
Force*distance between the force = Work.

Siddarrh said: (Oct 20, 2014)  
Work and couple are two different things work helps us to move an object moment or couple indicates the possibilities for the work to be done.

Sujit said: (Dec 17, 2014)  
COUPLE ACTING ON BODY MEANS TORQUE. SO USING THE FORMULA:

T = f.d.
THEN T= ma.d.

= M.L/T2.L (a=L/T2) & (d=L).
= ML2/T2.
= ML2T-2.

Baliram said: (Jun 26, 2015)  
Two equal and opposite parallel forces acting along different lines on a body constitute a couple.

The product of force and perpendicular distance between two force.

So force*distance = couple of force.

UNIT: NEWTON*METER = MLT^-2 L = ML^2T^-2.

Venkatraj.A said: (Jul 12, 2015)  
T = f.d.

Then T = ma.d.

= M.L/T2.L (a=L/T2) & (d=L).
= ML2/T2.

= ML2T-2.Formula for Couple acting on body (T)=F*d.
= Ma*d [F=M*a].

= M*dv/t*d [a==(vf-vi)/t)].
= M*(d/t/t)*d.

= Md^2/t^2.
= ML^2T^-2.

Arafath said: (Feb 24, 2017)  
How a=L/T2?

Prathap said: (Nov 6, 2017)  
T = f.d.

Then T = ma.d.

= M.L/T2.L (a=L/T2) & (d=L).
= ML2/T2.

Rustam Xaman said: (Dec 9, 2017)  
t=f.d f=ma m=M and d=L.

= M(a=v/t).L where v= s/t s=L
=M(L/t2).L WHERE t2 go square
=ML2T-2.

Ashish said: (Apr 12, 2019)  
Couple acting on body, unit is N-mm.
N = kg.mm.s^-2.
N-mm = kg.mm^2.s^-2.
N-mm = ML^2T^-2.

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