Q. A ball of mass $m$ is thrown vertically upwards. Another ball of mass $2m$ is thrown at an angle $\theta$ with the vertical. Both of them stay in air for same period of time. The heights attained by the two balls are in the ratio of
A) $2:1$
B) $1:\cos\theta$
C) $1:1$
D) $\cos\theta:1$
Explanation
(c) The vertical component of velocity of the balls will be same if they stay in air for the same period of time. Hence vertical height attained will be same
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.