Two masses, m_{1} and m_{2}, are initially at rest.
Suddenly, a force P is applied to m_{1} as shown in the figure.
As a result the two masses accelerate together to the right.
m_{1} = 12 kg
m_{2} = 16 kg
μ_{1,kin} = 0.30
μ_{2,kin} = 0.23
μ_{1,stat} = 0.32
μ_{2,stat} = 0.26
g = 9.81 m/s²
Draw the F.B.D. for mass m_{1}
Draw the F.B.D. for mass m_{2}
Draw the F.B.D. for both masses as a unit._{}
At what value of P will mass m_{2} be on the verge of not
accelerating at the same rate as m_{1} ?
(Hint : find first the maximum acceleration of m_{2} )