Which statement describes the motion of a mass on a spring? a. it exhibits constant velocity motion. b. it exhibits simple harmonic motion. c. it exhibits circular motion. d. it exhibits only upward motion.

since spring force on the mass is given by

so here force is restoring in nature and it also directly depends on the displacement with respect to mean position

so here force is satisfying the condition of Simple harmonic motion

so here we can say

so here we have

so here correct answer would be

B. It exhibits simple harmonic motion.

i dont think you are wrong for wanting to get even with someone who did you wrong.

(i'm an eye for an eye kind of person) but if this person hurt you in a sexual way, i dont suggest doing anything to him. he should be taken to the proper authorities, you could go to jail depending on what you do. if it was something small like your sibling took your spot on the couch, than yea, i would get even with him by taking one of his favorite snacks lol. but i dont suggest you doing anything illegal.

we need to know the time interval during which the force acts. impulse of force = momentum change