Somebody !   indicate the reasons why the centripetal acceleration (and centripetal force) always point to the center in uniform circular motion. select all that apply. a.) the v points toward the center of the circle. b.) the t points toward the center of the circle. c.) f=ma and since "a" points toward the center, so does f. d.) f=ma and since "m" points toward the center, so does f. (v=velocity)(t=time)(a=acceleration )(f=force)(m=mass)

Well we know the correct answer cannot be "a" bcause velocity is tangent to the circlular path of an object experienting centripical motion. Velocity DOES NOT point inward in centripical motion.

we know the correct answer cannot be "b" because "t" stands for "time" which cannot point in any direction. so, time cannot point toward the center of a circle and therefore this answer must be incorrect.

I would choose answer choice "c" because both force and centripical acceleration point toward the center of the circle.

I do not think answer choice "d" can be correct because the velocity of the mass moves tangent to the circle. velocity = (change in position) / time. Therefore, by definition the mass is moving in the direction of the velocity which does not point to the center of the circle.

does this make sense? any questions?

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