a car travels a distance of 100 m with constant acceleration and uniform velocity 20m/s. the final velocity of the car is 25m/s.find the initial velocity.
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Hey mate,
4.... is your answer...
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Explanation:
EXPLANATION.
GIVEN
A car travel a distance 100 m with a constant
acceleration and average velocity of 20 m/s
The final velocity acquired by the car = 25 m/s
To find.
1) = The initial velocity.
2) = Acceleration of a car.
=> 20 = 100 / T
=> T = 5 seconds.
average velocity= u+v/2
=> 20 = u + 25 / 2
=> 40 = u + 25
=> 15 = u
From Newton first equation of
kinematics.
=> v = u + at
=> 25 = 15 + 5t
=> 10 = 5a
=> a = 2 m/s²
Therefore,
1) = initial velocity = 15 m/s
2) = acceleration = 2 m/s²
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