Momentum and CollisionHard
Question
If street light of mass M is suspended from the of a uniform rod length L in different possible patterns as shown in figure, then :
Options
A.Pattern A is more study
B.Pattern B is more study
C.Pattern C is more study
D.All will have same sturdiness
Solution
Torque created due to weight of street light remains same in all the three cases. It is balanced by torque created by weight of lamp and T be tension in the string and d be perpen dicular dostance of cable from the axis them,
τ = T.d
Tension will be least for largest d. This is in pattern A. So pattern A is more study.
τ = T.d
Tension will be least for largest d. This is in pattern A. So pattern A is more study.
Create a free account to view solution
View Solution FreeMore Momentum and Collision Questions
A uniform wire of length l is bent into the shape of ′V′ as shown. The distance of its centre of mass from t...A homogeneous cylinder of length L and cross-section area A/5 is immersed such that its floats with it axis vertical at ...Figure shows a block A of mass 5 kg kept at rest on a horizontal smooth surface. A spring (K = 200 N/m) which is compres...A ball moving with a velocity v this a massive wall moving towards the ball with a velocity u. An elastic impact lasts f...Two blocks A and B each of mass m, are connected by a mass less spring of natural length L and spring of natural length ...