Fundamental Problem 17.1 4 of 7 aValue Units The cart and its load have a total

Question

Fundamental Problem 17.1 4 of 7 aValue Units The cart and its load have a total mass of 148 kg (Figure 1) Submit Request Answer PartB Determine the normal reaction on the pair of wheets at A Negiect the mass of the whools Express your answer to three significant figures and include the appropriate units Figure 1 o11 NA Value Units 100 N Submit Request Anwwer Part C Determina the normia reacton on the ar of whess at B Nogect ho nais of te o 1.2 m Express your answer to three significant figures and include the appropriate units 0.5 m 03m 0.4m 0.6m nits

Explanation / Answer

Given m = 148 kg

W = 158*9.81 = 1451.88N

Angle of force 100 N with horizontal = tan-1(3/4) = 36.87°

Taking moment about B

Ra*(0.4+0.6) =1451.88 *0.4-100*Cos(36.87°)*1.2+100*sin(36.87°)*0.3

Ra = 502.752 N

Similarly taking moment about A

Rb*(0.4+0.6) = 1451.88*0.6-100*cos(36.87°)*1.2+100*sin(36.87°)*(0.3+0.4+0.6)

Rb = 853.13

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