Question

THIS IS A QUESTION OF CHEMISTRY OF CLASS 11 CH-1
PLEASE ANSWER IT CORRECTLY
THIS IS A QUESTION OF CHEMISTRY OF CLASS 11 CH-1
PLEASE ANSWER IT CORRECTLY
(question of unit convention)
The average speed of a train is 100 miles per hour. Calculate the speed of the train in meter per second.
please give elaborated answer​

Answer 1

Answer:

Let the time taken while travelling at 40 km/hr be t minutes.

At distance is same speed is inversely proportional to the time taken

35

40

=

t

t+15

$$\frac{8}{7} = \frac{ t + 15}{t} 8t = 7t + 105t=105minutesor1 hour 45 minutes.Distancetravelled= 40 \times 1 + 10 \times \frac{3}{4} = 40 + 30 = 70km

Answer 2

Answer:

1 mile = 1609.344 metre

1 hour = 3600 second

100 miles/hour = 1609.344/3600 metre/second

100 miles/hour = 44.7038888889 metre/second

Hope this answer is useful to you!!