Q.
A body shown in figure is accelerating downward with acceleration $2\ m/s^{2}$. The tension in the string is
A) $48\ N$
B) $50\ N$
C) $30\ N$
D) $42\ N$
Explanation
(a) $T = m_{1}g\sin\theta - m_{1}a$
[image:5_image241.emf]
$T = 12 \times 10\sin 37 - 12 \times 2$
$T = 120 \times 0.6018 - 24$
$T = 72.21 - 24 = 48.21 = 48$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.