A bus crosses a light post, at the side of the road, in 3 seconds moving with a speed of 4 metres/sec. Find the length of the bus. which n train of lonath 150
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Answer:
The relative speed between the two trains is :
30 - 10 = 20m/s
This is the initial relative speed.
When brakes are applied the train slows down.
Given the acceleration = 2 m/s²
u = 20 m/s
With time the train comes to a sudden stop making the velocity 0.
V² = U² - 2as
0 = 400 - 4s
400 = 4s
S = 100m
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