Question

The ratio of the tentions $T$ to $T_1$ is $8:p$. The value of $p$ is

• A. $3$
• B. $1$
• C. $5$
• D. $7$

Answer 1

The correct option is C $5$

FBD of $3\text{kg}+5\text{kg}$
$8g-T=8a$
$\Rightarrow T=8(g-a)$
FBD of $5\text{kg}$
$5g-T_1=5a$
$\Rightarrow T_1=5(g-a)$
$\frac{T}{T_1}=\frac{8}{5}$