A train travels 98 kilometers in 4 hours, and then 61 kilometers in 3 hours. What is its average speed?

Question

20-06-2018
Physics

contestada

A train travels 98 kilometers in 4 hours, and then 61 kilometers in 3 hours. What is its average speed?

Respuesta :

Otras preguntas

Which sentence is punctuated correctly? “Thunder is good, said Mark Twain, but it is lightning that does the work.” “Thunder is good” said Mark Twain, “but it i

identified and explain any things should be considered before emoji are employed in the social media interactions

In what area do the states help the national government

Miranda tosses a fair coin consecutively five times and gets heads each time. When her son Shane asks her about the probability of getting tails on the next (si

Which line is the graph of the function y = x + 6?

Where is the moving electric field that causes Earth's magnetic field? A.)earth surface B.)in space C.)earth mantel D.)earth core

Growth and change are imminent in any business organization. true false

Given the following exponential function, identify whether the change represents growth or decay , and determine the percentage rate of increase or decrease y =

After Charles I became king, tensions increased when he

WrappinUp WrappinUp · Answer 1 · 2018-06-20T16:54:35+02:00

WrappinUp WrappinUp

20-06-2018

speed (velocity)=distance/time

V1=98km/4hr=24.5km/hr
V2=61km/3hr=20.3km/hr

Average speed (velocity)=total velocity/ number

Average speed (velocity)=44.8km/hr/2=22.4

So the average speed is 22.4km/hr

Answer Link