The sum of potential energy and the (blank) in a system is (blank)

Plss anybody know how to do this? ? i need the answers from a through d

2. -/1 pointsserpse10 2.7.p.017.mi. an object moving with uniform acceleration has a velocity of 14.0 cm/s in the positive x direction when its x coordinate is 2.97 cm. if its x coordinate 2.85 s later is -5.00 cm, what is its acceleration? cm/s2 need ? read it master it

The speed of light can be used to measure the