Answer to Question #16853 in Mechanics | Relativity for gg
A 206-kg crate is pushed horizontally with a force of 705 N. If the coefficient of friction is 0.20, calculate the acceleration of the crate.
The friction force acting on a crate is
F(friction) = μ*m*g = 0.20*206[kg]*9.81[m/s²] = 404.17 [N].
The net force acting on a crate is
F(net) = F(pushing) - F(friction) = 705[N] - 404.17[N] = 300.83 [N].
According to the second Newton's law the acceleration of a crate is
a = F(net)/m = 300.83[N]/206[kg] = 1.46 [m/s²].