You are solving a problem with a modified Atwood Machine. This consists of a block on a frictionless surface, M1, being pulled by a block, M2, that is connected to a cord that is draped over a pulley.

For some calculations, you must use the mass of the entire system and at other times, you use the mass of one of the single blocks Choose the calculation below that requires the use of the entire system. Elimination Tool . Select one answer Calculating the tension in the cord A connected to M1 when acceleration is known. B Calculatingthe acceleration of M1 when the net force is known. Calculating the tension in the cord C acting on M2 when acceleration is known. D Calculating the net force when gravitational acceleration is known