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Find the acceleration of a truck that starts from rest and accelerates to 60 km/hr in 15 sec?

Given:  s_{i} = 0 (rest) ;  s_{f} = 60 km/hr; t = 15 sec

equired: Acceleration

Equation: \frac{ s_{f} - s_{i} }{t}

Solution: \frac{ s_{f} - s_{i} }{t}
               \frac{60 km/hr - 0}{15 s}

               \frac{60 km/hr}{15 s}

              4  \frac{kph}{ s^{2} }

Answer: The acceleration of the truck is \frac{kph}{s^{2} } .