Q. A pendulum bob of mass $50\ gm$ is suspended from the ceiling of an elevator. The tension in the string if the elevator goes up with uniform velocity is approximately
A) $0.30\ N$
B) $0.40\ N$
C) $0.42\ N$
D) $0.50\ N$
Explanation
(d) $T = mg = 50 \times 10^{- 3} \times 10 = 0.5\ N$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.