Question

What should be the speed of a 100 m long train if it should cross a beggar moving in the same direction at a speed
of 1 m/s in 10 S?​

Answer 1

Answer:

216 km per hour if my answer is correct mark me as brainliest

Answer 2

Answer:

speed of the train = 11 m/s

Step-by-step explanation:

given, length of the train = 100 m

speed of the person = 1 m/s

time taken = 10 s

speed = $\frac{distance}{time}$

⇒$time = \frac{distance}{speed}$  ------(1)

let speed of train be x m/seconds

since both are in the same direction, relative speed = (x - 1) m/s

applying this to equation (1), we get

10 = $\frac{100}{x-1}$

10 (x-1) = 100

x-1 = $\frac{100}{10}$ = 10

x = 10 +1 = 11

therefore, speed of the train = 11 m/s