Find the acceleration of a truck that starts from rest and accelerates to 60 km/hr in 15 sec?
Given: [tex] s_{i} [/tex] = 0 (rest) ; [tex] s_{f} [/tex] = 60 km/hr; t = 15 sec
Required: Acceleration
Equation: [tex]\frac{ s_{f} - s_{i} }{t} [/tex]
Solution: [tex]\frac{ s_{f} - s_{i} }{t} [/tex]
[tex] \frac{60 km/hr - 0}{15 s} [/tex]
[tex] \frac{60 km/hr}{15 s} [/tex]
4 [tex] \frac{kph}{ s^{2} } [/tex]
Answer: The acceleration of the truck is 4 [tex]\frac{kph}{s^{2} } [/tex].
