PHYSICS_JEE Advance 2017_S2 - Competishun – Live JEE & NEET Courses and Exam Prep

JEE Advance 2017

Paper-2

Multiple correct answers - Select all that apply

Question

A right uniform bar AB of length L is slipping from its vertical position on a frictionless floor (as shown in the figure.) At some instant of time, the angle made by the bar with the vertical is $\theta$. Which of the following statements about its motion is/are correct?

Select ALL correct options:

When the bar makes an angle $\theta$ with the vertical, the displacement of its midpoint from the initial posiiton is proportional to $(1-\cos \theta)$

The midpoint of the bar will fal vertically downward

Instantaneous torque about the point in contact with the floor is proportional to sin $\theta$

The trajectory of the point A is a parabola

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

⚠ Partially correct. Some answers are missing.

Solution