Q. A ball is thrown straight upward with a speed $v$ from a height $h$ above the ground. The time taken for the ball to strike the ground is given by
A) $- h = vt - \frac{1}{2}gt^{2}$
B) $h = vt - \frac{1}{2}gt^{2}$
C) $\frac{1}{2}gt^{2}$
D) $\sqrt{\frac{2g}{h}}$
Explanation
(a) (a) Take vertically upward direction as positive and vertically downward direction as negative.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.