MHT CET202210 Aug 2022Morning ShiftPhysicsWork, Power and EnergyActual
A string of L is fixed at one end and carries a mass M at the other end. The string makes 2 revolutions per second around the vertical axis through the fixed end as shown in the figure, then the tension in the string is
Options
- A2 M L
- BM L
- C16 M L
- D4 M L
Correct answer
C. 16 M L
Step-by-step solution
Given: = 2 rev.per sec =2 2 rad / s =4 rad / s The horizontal force balance reads: T =M R ^2 From figure R=L T=M L ^2 On introducing, =4 rad / s T=M L(4)^2=16 ML