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

Complete equation of the line through (1,4) and (2,2)
whats the factorization of x2+3x−18
A student is saving at least $5,000 for college. She begins with a savings account set up by her parents containing $2,000. Each month she deposits an additiona
List 3 behaviors that you can begin today that will help you develop a good habit.
2. What is a possible consequence for failing to investigate a report of unprofessional conduct by a school employee? a. Warning by the human resources departme
Ryan earned money babysitting. He earned $40, $40, $51, $32 and $22. Find the mean amount he earned.
How many significant figures are in 382.90?
Foot protection is necessary in the laboratory to prevent injuries from exposure to all of the following EXCEPT: A electrical shock B corrosive chemicals C heav
So I have another trigonometry question PLZ HELP ME I'm clueless at this rate I have like a little idea but I'm lost, SO PLZZZ! I NEED IT BY JUNE 41. Lifeguard
help meeeeeeeeeeeeeeee