1.

a car moving at 50km/h after 15 minutes it is moving at speed of 80km/h find the acceleration of the car!

Answer»

ANSWER:

\\\tt 120 Km h^{-2}

Explanation:

ACCELERATION is defined as ate of change of VELOCITY. MATHEMATICALLY,

\\\tt \dfrac{v_{final} - v_{inital}}{\Delta t} \\\\\tt Here \ acceleration =  \dfrac{80Kmh^{-1} - 50Kmh^{-1} }{15/60 h}\\\\\tt =  \dfrac{30Kmh^{-1} }{0.25 h} = 120 Km h^{-2}



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