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A bus starts with an initial velocity of 10 m/s and acceleration 0.1 m/s² .Calculate the velocity acquired in 2 minutes. |
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Answer» :➥ The final velocity of a bus = 22 m/sGiven :➤ Intial velocity of a bus (u) = 10 m/s➤ ACCELERATION of a bus (a) = 0.1 m/s²➤ Time taken by a bus (t) = 2 min To Find :➤ Final velocity of a bus (v) = ?Solution :To find the final velocity of a bus, first we need to CONVERT the time taken MINUTE into second, then after we find final velocity of a bus from first equation of motion.◈ Time taken (t) = 2 min = 2 × 60 = 120 secFinal velocity of a busFrom first equation of motion→ v = u + at→ v = 10 + 0.1 × 120→ v = 10 + 12→ v = 22 m/sHence, the final velocity of a bus is 22 m/s.Some related equations :⪼ v = u + at⪼ s = ut + ½ at²⪼ v² = u² + 2asWhere,v is the final velocity.u is the intial velocity.a is the acceleration.t is the time taken.s is the distance.━━━━━━━━━━━━━━━━━━━━━ |
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