A straight rod of length L extends from x= a to x= L+a. The linear mass density of the rod varies with x- coordinate is lamda=A +bx^(2). The gravitational force experienced by a point mass m at x= 0 is

A straight rod of length L extends from x= a to x= L+a. The linear mas

1.	A straight rod of length L extends from x= a to x= L+a. The linear mass density of the rod varies with x- coordinate is lamda=A +bx^(2). The gravitational force experienced by a point mass m at x= 0 is
Answer» `GM[(A)/(a) + BL]` `Gm[BL + (A)/(a+L)]` `Gm[A[(1)/(a)-(1)/(a+L)+BL]` `Gm[(BL)/(a) + (A)/(a^(2))]` ANSWER :C