2007-01-01 04:46:39 · 4 answers · asked by Eddie B 1 in Science & Mathematics ➔ Physics
No, Yes, No
Acceleration
No since acceleration is a change of speed with respect to time we can say
(V2-V1)/t but we do not know initial and final velocity only the average speed. So the answer is NO
Average speed
The average speed is distance over time traveled and it was s/t=300km/3h=100km/h and the answer is YES.
Velocity is not speed. Besides the rate of change of distance we also need to know what is the direction. Since direction is not given the answer is NO.
2007-01-01 04:53:03 · answer #1 · answered by Edward 7 · 1⤊ 0⤋
Both acceleration and velocity are vector quantities(meaning you must also no direction) Average speed is simply distance/time. The only one you can find is average speed.
Acceleration = change in velocity/change in time. We do not know the change in velocity
Velocity=displacement/time....this one is slightly confusing. Displacement is the distance from where we started. If you go to the store and back home, you displacement is zero. We only know the overall distance in this problem, we do not know the distance.
2007-01-01 05:29:42 · answer #2 · answered by ? 2 · 0⤊ 0⤋
Distance =(R) Rate x (T) Time
So...
300 Kilometers (D) divivided by 3 Hours (t)= 100 kilomters per hour
2007-01-01 04:57:16 · answer #3 · answered by chip33302 3 · 0⤊ 0⤋
You can only find out acceleration if you know that the acceleration is constant; then you can use d=at^2
Velocity and speed are synonymous.
The only thing you can learn from your information is that average speed was 100 km/hour.
2007-01-01 04:54:03 · answer #4 · answered by John T 6 · 0⤊ 1⤋