Aspaceship moving with an initial velocity of 58.0 meters/second experiences a uniform acceleration and attains a final velocity of 153 meters/second. what distance has the spaceship covered after 12.0 seconds?

a.) 6.96 × 102 meters
b.) 1.27 × 103 meters
c.) 5.70 × 102 meters
d.) 1.26 × 102 meters
e.) 6.28 × 102 meters

this question is on civics

(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)