A bus starts from rest and moves with an acceleration of 1m/s2 for 5 minutes. Find 2 (a) The speed of the car.
(b) How far does it travel during this time?
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Answer:
The answers are (a) 300m/s and (b) 45000m
Explanation:
We know it starts from rest so ,
u = 0m/s
We know the acceleration = 1m/s2
Time = 5 minutes = 300s
Using v = u + at
v = 0 + 1×300
v = 300m/s
using s = ut + 1/2 × a × t2
s = 0 × 300 + 1/2 × 1 × 300 × 300
Therefore s = 45000m or 45 km
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