Question

g Two boxes with a mass of 34 kg each are resting on a surface where the coefficient of static friction is LaTeX: \mu_sμ s = 0.4. Knowing that LaTeX: \thetaθ = 26LaTeX: ^\circ∘, determine the force P required to cause the boxes to slide. Enter the magnitude of P below in N to the nearest whole N.

Answer 1

P = 303N

Step-by-step explanation:

The diagram was missing. Attached you can find the correct diagram.

With a sum of forces on box A:

`T-F_(fa)=0` where
`F_(fa)=\mu s*m*g`

Solving for T:

`T=\mu s*m*g`

T=136N

Now, on box B:

`P*cos\theta-T-F_(fb)=0` Where T=136N;
`F_(fb)=\mu s*m*g`

Solving for P:

`P = (T+F_(fb))/(cos\theta)`

P = 303N