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Three objects A, B, C are placed 50.0 cm apart
along a straight line. A and B have a mass of 10.0 kg,
while C has a mass of 15.0 kg. What is the net force
on B due to A and C?

Respuesta :

Answer:

F= 1.334x10^-8N

Explanation:.

F(AB)=100G/(50x10^-2)^2  

F(CB)=150G/(50x10^-2)^2

F(net)=F(AB)-F(CB)  

Note that, distance should be in meters so convert it into meter or directly use its meter value (50x10^-2m)

Substitude the value of G=6.67x10^-11Nm^2/kg^2 into the equations and the do the calculations you will obtain the answer.

The net force on B due to A and C will be "1.33 × 10⁻⁸ N". To understand the calculation, check below.

Force

According to the question,

Mass of A and B = 10.0 kg

Mass of C = 15.0 kg

Radius, r₁ = r₂ = r = 50.0 cm or,

                            = 0.5 m

We know, G = 6.67 × 10⁻¹¹ m³/kg.s²

According to the formula,

→ [tex]F_{BC}[/tex] = [tex]\frac{G M_B M_C}{r_1^2}[/tex]

or,

→ [tex]F_{AB} = \frac{G M_A M_B}{r_1^2}[/tex]

The net force be:

→ [tex]F_{Net}[/tex] = [tex]F_{BC} - F_{AB}[/tex]

           = [tex]\frac{G M_B M_C}{r^2} - \frac{D M_A M_B}{r^2}[/tex]

           = [tex]\frac{G M_B}{r^2}[/tex] [[tex]M_C -M_A[/tex]]

By substituting the values,

           = [tex]\frac{6.674\times 10^{-11}\times 10}{(0.5)^2}[/tex] [15 - 10]

           = 1334.8 × 10⁻¹¹ N or,

           = 1.33 × 10⁻⁸ N

Thus the above response is correct.

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