A) \[Gm\left[ \frac{A}{a}+BL \right]\]
B) \[Gm\left[ A\left( \frac{1}{a}-\frac{1}{a+L} \right)+BL \right]\]
C) \[Gm\left[ BL+\frac{A}{a+L} \right]\]
D) \[Gm\left[ BL+\frac{A}{a} \right]\]
Correct Answer: B
Solution :
[b] \[\because dF=\frac{GM\left( \mu dx \right)}{{{x}^{2}}}\] \[F=GM\int{\left( A+Bx \right)\frac{dx}{x}}\] \[F=GM\left[ A\left( \frac{1}{a}-\frac{1}{a+L} \right)+BL \right]\]You need to login to perform this action.
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