JEE Main 2017 — Rotational Motion Question with Solution
From: JEE Main 2017 (Online) 9th April Morning Slot
Question
The machine as shown has 2 rods of length1 m connected by a pivot at the top. The end of one rod is connected to the floor by a stationary pivot and the end of the other rod has a roller that rolls along the floor in a slot. As the roller goes back and forth, a 2 kg weight moves up and down. If the roller is moving towards right at a constant speed, the weight moves up with a :
This question includes a diagram. The text above accompanies the figure.
Choose an option
Show full solutionCorrect option: B
Correct answer
Bdecreasing speed
Step-by-step explanation
As the force F acts on the horizontal direction, the vertical force acting on the rod to raise the weight to move upwards happens with decreasing speed.
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This is a previous-year question from JEE Main 2017, covering the Rotational Motion chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.