A 150 m long train having a constant acceleration crosses a 300 m long

1.	A 150 m long train having a constant acceleration crosses a 300 m long platform enters the platform at a speed of 40 m/s and leaves it at a speed of 50 m/s. What is the acceleration of the train? (1) 0.6 m/s (2) 0.8 m/s 13) 10 m/s (4)1.2 m/s
Answer» Answer: 1 m/s² Explanation: Total distance TRAVELLED by train to completely pass the platform = 150 m + 300 m = 450 m Use equation of motion a = (v² - u²) / (2S) = (50² - 40²) / (2 × 450) = 1 m/s²

A 150 m long train having a constant acceleration crosses a 300 m long platform enters the platform at a speed of 40 m/s and leaves it at a speed of 50 m/s. What is the acceleration of the train? (1) 0.6 m/s (2) 0.8 m/s 13) 10 m/s (4)1.2 m/s

Answer»

Answer:

1 m/s²

Explanation:

Total distance TRAVELLED by train to completely pass the platform = 150 m + 300 m = 450 m

Use equation of motion

a = (v² - u²) / (2S)

= (50² - 40²) / (2 × 450)

= 1 m/s²

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A 150 m long train having a constant acceleration crosses a 300 m long platform enters the platform at a speed of 40 m/s and leaves it at a speed of 50 m/s. What is the acceleration of the train? (1) 0.6 m/s (2) 0.8 m/s 13) 10 m/s (4)1.2 m/s

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