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

A rose garden is formed by joining a rectangle and a semicircle, as shown below. The rectangle is 24 ft long and 16 ft wide. Find the area of the garden.
Chu, an Operating Manager, needs to terminate one of his subordinates, who works on the same floor. The employee, even after several warnings, has been poorly e
The number of hearing aids that needs to be produced and sold is??
.............................
SOMEONE PLEASEEEEEEEEEE HELP!!!!!!!!1
the force of attraction between the earth and objects on it is called..
Michelle rode her bicycle from her house to school at an average speed of 8 miles per hour. Later that day, she rode from school back home along the same route
Four randomly chosen Nevada students were asked how many times they drove to Arizona last year. Their replies were 4,5,6,7. The geometric mean is Group of answe
Tables A telephone exchange operator assumes that 8%8% of the phone calls are wrong numbers. If the operator is correct, what is the probability that the propor
how to write an essay​