Need help w/ physics problem!

[SpeedeRi2]

Any help will be appreciated! :smile:

1.) An object travels in a straight line at a uniform velocity of 10 m/s for 3 seconds and then travels for 2 seconds at constant speed of 5 meters per second in the same direction. Calculate the total distance traveled.

[cepheid]

If I move at 10 m/s, that means I move a distance of 10 metres every second. So if I travel at that velocity for 3 whole seconds, how far have I gone? Do you see that d = vt is all you need for this problem. More importantly, do you see why it applies from my description?

[Doc Al]

Do not double post!

http://www.physicsforums.com/showthread.php?t=50847

[expscv]

lol becareful distance and displacement displacement is a vector

[$id]

He does mention its in the same direction. If you have graph of the above data, then the area under the graph equals distance travelled(speed-time graph)

[SpeedeRi2]

so i haev 2 answers one 50 mph and one 65 mph , they probley are both wrong, but i used two different equations and obtained two different answers!?

[Doc Al]

An object travels in a straight line at a uniform velocity of 10 m/s for 3 seconds
So how far does it travel in those first 3 seconds?
and then travels for 2 seconds at constant speed of 5 meters per second in the same direction.
And how far does it travel in these 2 seconds?

So... what's the total distance traveled?