Q. A force of $100$ dynes acts on a mass of $5\ gram$ for $10\ sec$. The velocity produces is
A) $2000\ cm/sec$
B) $200\ cm/sec$
C) $20\ cm/sec$
D) $2\ cm/sec$
Explanation
(b) $v = u + at = 0 + \left( \frac{F}{m} \right)t = \left( \frac{100}{5} \right) \times 10 = 200\ cm\ /sec$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.