Two bodies of massless string passing over a frictionless pulley. The acceleration of the system is `(g=9.8m//s^(2))`

Options

A. `4.9m//s^(2)`
B. `2.45m//s^(2)`
C. `1.4m//s^(2)`
D. `9.5m//s^(2)`

Answer

C

Explanation

Acceleration `=((m_(2)-m_(1))/(m_(2)+m_(1)))8`
`=(4-3)/(4+3)xx9.8=(9.8)/(7)=1.4m//sec^(2)`