P' and 'Q' horizontally push in the same direaction a `1200kg` crate. 'P' pushes with force of 500 newton 'Q' pushes with a force of `300` newton If a frictional force provides `200` newton of resistance what is the acceleration of the crate. ?

Options

A. `1.3 m//s^(2)`
B. `1.0 m//s^(2)`
C. `0. 75 m//s^(2)`
D. `0.5 m//s^(2)`

Answer

D

Explanation

`F_("net")=ma,a=(F_("net"))/(m)=((F_(P)+F_(Q))-f)/(m)`