Two trains X and Y are running on parallel tracks with a speed of 72km/h and 54km/h respectively. The driver of train X applies the brake and it comes to a stop in 10seconds. While the driver of train Y applies the brake and the train retards uniformly before coming to rest in 15 seconds. Plot distance-time graphs for both the trains. Also, calculate the distance travelled by each train after the brakes were applied.
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We first convert the speeds to M / s
Speed for X:
72 × 5 /18 = 20 m / s
Speed for Y:
54 × 5 / 18 = 15 m / s
Distance = Time × speed
Distance of X :
10 × 20 = 200 m
Distance of Y :
15 × 15 = 225 m
Find graph in the image below.
Speed for X:
72 × 5 /18 = 20 m / s
Speed for Y:
54 × 5 / 18 = 15 m / s
Distance = Time × speed
Distance of X :
10 × 20 = 200 m
Distance of Y :
15 × 15 = 225 m
Find graph in the image below.
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Answer:
Explanation:We first convert the speeds to M / s
Speed for X:
72 × 5 /18 = 20 m / s
Speed for Y:
54 × 5 / 18 = 15 m / s
Distance = Time × speed
Distance of X :
10 × 20 = 200 m
Distance of Y :
15 × 15 = 225 m
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