Posted by **lisa** on Tuesday, January 31, 2012 at 8:01pm.

a car traveling on a straight road at 20 meters per second accelerates to 26 meters per second in 12 seconds. what is the total distance traveled by the car? please help!

- math -
**Reiny**, Tuesday, January 31, 2012 at 8:53pm
I know that there are formulas in physics for this type of question, but I am not a physics teacher , so I will use standard Calculus

a = (v2 - v1)/(time2 - time1) = (26-20)/(12-0) = 6/12 = 1/2

since a = 1/2

v = (1/2)t + c

when t = 0, v = 20

20 = c

so v = (1/2)t + 20

then

d = (1/4)t^2 + 20t + k

at t=0 , d = k

at t = 12 , d = (1/4)(144) + 20(12) + k= 276+k

distance covered in that 12 seconds = 276k - k = 276 m

drwls or bobpursley could do it much easier.

## Answer This Question

## Related Questions

- physics - A car is originally traveling at 15.0 meters per second on a straight ...
- Algebra - Use the given information to write a systems of equations, and then ...
- Physics - A car slowed down at a constant rate from 32meters per second to 3.0 ...
- algebra - The formula below can be used to find the distances (d) traveled by an...
- algebra - The formula below can be used to find the distance (d) traveled by an ...
- math(mechanics 1) - a car traveling on a straight road accelerates uniformly at ...
- Calculus! Please help me! - A person on a bicycle is 100 meters west of a person...
- Science - A 1 420kg car coasts in neutral down a 2.0 degrees hill. The car ...
- Calculus help PLEASE - It is known that an object traveling in straight line ...
- Calculus - A team has been working to convert diesel-powered cars to run just as...

More Related Questions