Three boxes, each of mass 15.0 kg are on a frictionless table, connected by massless strings. A force of tension T ₁ pulls on the rightmost box (A) such that the three boxes accelerate in the positive horizontal direction at a rate of a = 1.0 m/s ² .

a) What is the magnitude of T1?

b) What is the net horizontal force on box A?

c) What is the net force that box B exerts on box A?

d) What is the net horizontal force on box B?

e) What is the net force box C exerts on box B?