5. A 20 kg block (A) rests on a frictionless table; a cord attached to the block extends horizontally to a pulley at the edge of the table. A 10 kg mass (B) hangs at the end of the cord. A B a. Clearly draw and label the force vectors acting on each object. b. Calculate the acceleration of the block and mass. c. Calculate the tension in the cord. 6. Below is a picture of an Atwood's Machine: two masses attached to a frictionless, massless pulley. The mass of block A is 5.0 kg, and the mass of B is 2.0 kg. a. Calculate the acceleration of the system when the blocks are released. b. Calculate how long will it take for block A to fall 2.0 m. c. The system is run, and the acceleration is measured with photogates. When measured, the acceleration is 5% less than calculated earlier. Student 1 states "Mass B must really be more than 2.0 kg based on these results." Student 2 states "No, I put Mass B on a balance, and it was exactly 2.0 kg. It must be a problem with mass A." Which student(s) are talking about inertial mass and which student(s) are talking about gravitational mass? Explain.