8. The position of a vehicle moving on a straight track along the x-axis is given by the equation *(t) = + + 3t+ 5, where x is in meters and t is in seconds. What is its acceleration at time t = 5 s?​

Ithink the answer is c but then again i'm probably wrong

Answer59.2kg; /

I'm having some difficulty seeing the diagram clearly.but the question says there's a net inward force on the object.so we know right away,  from newton's 2nd law of motion, thatthat baby is accelerating.  it doesn't even matter which way thenet force is pointing.  if there's any net force, then either theobject's speed or else its direction must be changing.