What is the acceleration of a vehicle moving in a straight line that changes its velocity from 90km/hour to dead stop in 10seconds?
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Explanation:
Initial velocity of vehicle (u) = 90 km/hr = 25 mps
Final velocity of vehicle (v) = 00 mps
Time (t) = 10 sec
Acceleration = v - u / t
= 00 - 25 / 10
= -25 /10
= - 2.5 mps
Acceleration of vehicle = - 2.5 mps
( Acceleration is negative because the velocity of vehicle decreases with time)
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