Points for hows1way1 and DrippyJazz123 cuz nobody else deserves these points more than them when i leave, and if your not them dont worry cuz I’m doing another one Pls don’t answer if your not them thanks :)

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.

Within a pendulum, as potential energy decreases, energy increases. a. heat b. kinetic c. frictional d. gravitational

Which of the following statements accurately describes the sign of the work done on the box by the force of the push? a. positive b. negative c. zero