Sa5neyjIntpayna Sa5neyjIntpayna

04-01-2017
Physics

contestada

A car travels 40 km in an hour. in the next two hours it travels 78 km. what is the average speed of the car?

Respuesta :

AndrewDawsonYT AndrewDawsonYT

04-01-2017

To work this out using the speed equation:

s = d/t

therefore,

d = 40000m (km = 1000m) so, 40 * 1000 = 40000
t = 2h

s = 40000/2 = 20000m

s= 20kmh.

Answer Link

Otras preguntas

What are the 3 features of a typical seigneurie

which seismic wave moves through earth at the fastest speed?

How many atoms are in 0.750 moles of zinc?

If 8 men can chop down 28 trees in one day, how many trees can 20 men chop down in one day?

What are the 3 features of a typical seigneurie

How do scientists use seismic waves to determine the interior structure of Earth?

What is biogeography and what does it provide?

After what happened on April 19 can war between the colonies and Great Britain be avoided?

The height of a rectangular prism with a 20 cm by 12 cm base and a 30 cm diagonal.find the unknown dimension

After what happened on April 19 can war between the colonies and Great Britain be avoided?