jabbir1102
jabbir1102 jabbir1102
  • 01-01-2019
  • Physics
contestada

A train travels 81 kilometers in 3 hours, and then 63 kilometers in 4 hours. What is its average speed?

Respuesta :

zaidmir1987
zaidmir1987 zaidmir1987
  • 01-01-2019

Avg speed =Total Distance / Total Time Taken

Therefore = Avg speed = 144/7 = 20.57 km/h

Hope you understood and liked my answer!

Answer Link

Otras preguntas

x2 + y2 + 12x + 2y – 1 = 0
American identity is what ?
Adam de la Halle was a famous: O A. trouvère. O B. singer. O c. monk. O D. theorist.
Which of the following is a health measure taken by the national government to improve public health? A. providing better health facilities to underdeveloped c
Having already developed relationships with one another, Mikel's team members are now starting to focus on solving problems and completing their assigned tasks.
which expression is a factor of the quadratic 6x^2-11x-35? 2x-7, 2x-5, 2x+7, 2x+5
Write a program numbers.cpp that defines a function bool isDivisibleBy(int n, int d); If n is divisible by d, the function should return true, otherwise return
What is 4.49 rounded to the nearest whole number ?
Is the figure a rectangle? Explain. The figure is a parallelogram. One diagonal measures 28 units. No, it is not a rectangle because the diagonals are congruent
Considering the form of the Gibb's Free Energy and the condition about it that some process be spontaneous, if some system has the following properties, what wo