1. Which of the following expressions is a correct expression of Newton's second law for the forces acting on my? A. T + mig = ma m. > m1 B. T- mig = mja IT WTH C. mig - T = mid Ascending D. mig- T = -mja E. mig +T = -mja Descending 2. Using the figure from the previous question, if ma equals 10 g and my equals 5 g what is the acceleration of the system? (Use g = 10 m/s 'in your calculations.) A. 3.33 m/s B. 50.0 m/s C. 10.0 m/s D. 5.0 m/s2 E. 2.0 m/s? 3. The acceleration of the masses doubles when an unknown mass is added to mz. What is the unknown mass? (m, = 5 g and mz = 10 g) A. 5g B. 10 g C. 15 B D. 20 g E. 25 4. In this lab, which of the following quantities needed to be constant throughout the xperiment? A. mi B. m2 C. mi - m2 D. m1 + m2 E. mi/mzAtwood's Machine 5. Which combination of masses shown below would result in the greatest acceleration? A. m =5 g; me = 10 g B. m1 = 10 g; my = 15 g C. m1 = 15 g; my = 20 g D. m1 = 20 g; ma = 25g E. All of these masses would result in the same acceleration