Q. Three different objects of masses $m_{1},\ m_{2}$ and $m_{3}$ are allowed to fall from rest and from the same point $‘O’$ along three different frictionless paths. The speeds of the three objects, on reaching the ground, will be in the ratio of
A) $m_{1}:m_{2}:m_{3}$
B) $m_{1}:2m_{2}:3m_{3}$
C) $1:1:1$
D) $\frac{1}{m_{1}}:\frac{1}{m_{2}}:\frac{1}{m_{3}}$
Explanation
(c) Speed of the object at reaching the ground $v = \sqrt{2gh}$
If heights are equal then velocity will also be equal
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.