Problem 1:
Two cars travel in the same direction along a straight highway, one at a constant speed of 55 mi/h and the other at 70 mi/h. a) Assuming that they start at the same point, how much sooner does the faster car arrive at a destination 10.0 miles away? b)How far must the faster car travel before it has a 15 minute lead on the slower car?
Problem 2: I just need someone to check my work.
A car traveling in a straight line has a velocity of +5.0 m/s at some instant. After 4.0 s velocity is 8.0m/s. What is the average acceleration during the time interval?
My answer was 2.0 m/s, but I have a feeling it's wrong? Can someone help me correct it?
Problem 3: Same as problem 2, I just need someone to check it.
A car is traveling at 108 km/h...The driver stomps on the gas pedal and accelerates up to a sped of 135 km/h. It took 3.5 seconds to reach this speed, what is the average acceleration?
My answer was 2.14 m/s..
I don't necessarily need the answers; the formulas and a starting hint is more than enough help.
Thanks so much.
THANKS SO MUCH!
knr- for 1b) where did the 4 denominator come from?
Two cars travel in the same direction along a straight highway, one at a constant speed of 55 mi/h and the other at 70 mi/h. a) Assuming that they start at the same point, how much sooner does the faster car arrive at a destination 10.0 miles away? b)How far must the faster car travel before it has a 15 minute lead on the slower car?
Problem 2: I just need someone to check my work.
A car traveling in a straight line has a velocity of +5.0 m/s at some instant. After 4.0 s velocity is 8.0m/s. What is the average acceleration during the time interval?
My answer was 2.0 m/s, but I have a feeling it's wrong? Can someone help me correct it?
Problem 3: Same as problem 2, I just need someone to check it.
A car is traveling at 108 km/h...The driver stomps on the gas pedal and accelerates up to a sped of 135 km/h. It took 3.5 seconds to reach this speed, what is the average acceleration?
My answer was 2.14 m/s..
I don't necessarily need the answers; the formulas and a starting hint is more than enough help.
Thanks so much.
THANKS SO MUCH!
knr- for 1b) where did the 4 denominator come from?