waec model questions vol1 2017 physics
Essay • Question 3
Question 3
WAEC_MODEL_QUESTIONS_VOL1
•
2017
A car accelerates uniformly from rest to a speed of 25 m/s over a distance of 200 meters. The car then travels at a constant speed for a distance of 300 meters before decelerating uniformly to a stop over a distance of 100 meters. Calculate the total time taken for the entire journey and the average speed of the car during the journey.
Question Parts
(
a
)
Determine the time taken to accelerate to 25 m/s.
(
b
)
Calculate the time taken to travel the distance of 300 meters at constant speed.
(
c
)
Determine the time taken to decelerate to a stop over the distance of 100 meters.
(
d
)
Calculate the total time taken for the entire journey and the average speed of the car during the journey.
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