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If a truck that is traveling at 15 mph speeds up to 45 mph in 10 seconds, what is the truck’s acceleration?
PLZ HELP!!!! I NEED A ANSWER AND THE FIRST ONE TO ANSWER WILL GET A BRAINLIEST!!!!

Respuesta :

emileebrown070

Answer: 3 miles per hour

Explanation:

The initial speed u =  15mph

The final speed v= 45mph

The time t= 10 seconds  

A=?

v=u+at

45=15+a*10

45=15+10a

45-15=10a

30=10a

divide both sides by 10

a=30 divided by 10

a= 3 miles per hour

joyceponder123
3mph, person above me is right

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