Question

a car accelerates from rest to reach maximum velocity 20m/s at 5m/s square and then retards to rest at 2m/s square what is the time which the car is in motion ? please give the answer only no need explanation i want to just check my answer

Answer 1

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Given maximum Velocity is 30 m/s

Distance travelled during acceleration is given by

30 ^2 −0=2×5×S 1

Hence , S 1 =90m

Distance travelled during retardation

0−30 ^2 =2×−3×S 2

Hence , S 2 =150m

∴ Total distance travelled is 90+150=240m

Answered by TOPPER

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