Q.
Two blocks masses 1 kg and 2 kg rest on a smooth horizontal table. When the 2 kg block is pulled by a certain force $F$, the tension $T$ in the string is 1.5 N. The value of $F$ is
A) 1.5 N
B) 2.5 N
C) 3.5 N
D) 4.5 N
Explanation
(d) $T = 1 \times a$ or $1.5 = a$
$F = (1 + 22)$ kg $\times 1.5\ ms^{- 2} = 4.5$ N
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.