0-m-long rod has its densityin kilograms per meter of length given by = a + bx, where a is a constant, b another constant equal to 2.0kg/m 2 , and x...

A 1.0-m-long rod has its densityλin kilograms per meter of length given by λ= a + bx, where a is a constant, b another constant equal to 2.0kg/m2, and x is the distance from the left end of the rod. The rod rests horizontally with each end supported by a scale. The scale at the left end reads 15N.

• Find the constant a.
• Find the right-hand scale reading.Find the right-hand scale reading.