Question

Two unequal masses of `1kg` and `2kg` are connected by an inextensible light string passing over a smooth pulley as shown in figure. A force `F = 20N` is applied on `1kg` block find the acceleration of either block `(g = 10m//s^(2))`.

Answer 1

`a = ("Net pulling force")/("Total mass") = (F + 10 - 20)/(1 + 2)` `(F = 20N)`
`= (10)/(3) m//s^(2)`