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katrin [286]
3 years ago
5

How long will it take an object to accelerate from a velocity of 4.8 m/s to a velocity of 15.6 m/s if it is accelerating at a ra

te of 0.9 m/s2
Physics
1 answer:
denis23 [38]3 years ago
3 0

Initial velocity of the object (u) = 4.8 m/s

Final velocity of the object (v) = 15.6 m/s

Acceleration of the object (a) = 0.9 m/s²

By using equation of motion, we get:

\bf \longrightarrow v = u + at \\  \\  \rm \longrightarrow 15.6 = 4.8 + 0.9t \\  \\ \rm \longrightarrow 15.6 - 4.8 = 4.8 - 4.8 + 0.9t \\  \\ \rm \longrightarrow 10.8 = 0.9t \\  \\ \rm \longrightarrow 0.9t = 10.8 \\  \\ \rm \longrightarrow  \dfrac{0.9}{0.9} t =  \dfrac{10.8}{0.9} \\  \\  \rm \longrightarrow t = 12 \: s

\therefore Time taken by the object (t) = 12 s

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