Amass is pressed against (but is not attached to) an ideal horizontal spring on a frictionless horizontal surface. after being released from rest, the mass acquires a maximum speed v and a maximum kinetic energy k. if instead the mass initially compresses the spring twice as far:

Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)

How is zig zagging a form of acceleration?

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.