Rotational MotionHard
Question
In an experiment with a beam balance an unknown mass m is balanced by two known masses of 16kg and 4 kg as shown in figure. The value of the unknown mass m is : -
Options
A.10 kg
B.6 kg
C.8 kg
D.12 kg
Solution
16l1 = ml2 ⇒ 
⇒ ml1 = 4l2 ⇒ 
∴
⇒ 
∴ m = 
× 2l1 = 8kg
⇒ ml1 = 4l2 ⇒ ∴
⇒ ∴ m = × 2l1 = 8kgCreate a free account to view solution
View Solution FreeMore Rotational Motion Questions
A ring is rolling without slipping. Its energy of translation is E. Its total kinetic energy will be :-...A plank with a uniform sphere placed on it, rests on a smooth horizontal plane. Plank is pulled to right by a constant f...A uniform thin rod AB is equipped at both ends with the hooks shown and is supported by a frictionless horizontal table....A particle performs uniform circular motion with an angular momentum L. If the frequency of particle′s motion is d...If rotational kinetic energy is 50% of total kinetic energy then the body will be :-...