JEE Main 2026 — Work Power Energy Question with Solution
JEE Main 2026 (06 April Shift 2)
Question
The velocity at which kg mass (shown in figure) strikes the ground when it is released from a height of m above the ground is __________ m/s. Assume pulley is massless and string is light and inextensible. (Take g m/s)
Choose an option
Show full solutionCorrect option: A
Correct answer
A
Step-by-step explanation
Let the acceleration of the system be and the tension in the string be .
The equations of motion for the two masses are:
Adding the two equations, we get:
Substituting , the acceleration is:
The mass is released from rest () and travels a downward distance .
Using the kinematic equation :
Answer:
The equations of motion for the two masses are:
Adding the two equations, we get:
Substituting , the acceleration is:
The mass is released from rest () and travels a downward distance .
Using the kinematic equation :
Answer:
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This is a previous-year question from JEE Main 2026, covering the Work Power Energy 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.