Question

Feb. 6, 2017 PHYS 1201 page 5 of 6 Midterm #1 P2. A 120 g mass is set in motion on the end of a horizontal spring by pulling it aside a distance of 5.00 cm to the right from equilibrium and releasing it. It is observed to oscillate with a period of Feb. 6, 2017 0.700 s a) What is the stiffness (spring constant) of the spring? [2 marks b) On the axes below sketch a graph of the position vs. time for the mass. Include scales on the axes. 3 marks c) Indicate at least two times on your graph when the mass has its maximum kinetic energy. 11 d) How fast is the mass going when it is 3.00 cm from the equlbrium position? [3 marks) e) (BONUS] Find a time when the mass is 3.00 cm left of equilibrium and travelling to the right BONUS 4 marks] P2 total: 9+ /4 BONUS

Answer 1