(change in velocity)/(change in time)=avg. acceleration
(-30 m/s)/(15s)= -2 m/s2
The sprinter's acceleration is 2 meters per second squared.
-6.667 miles per second squared
Average acceleration = (change in speed) divided by (time interval)A = (40 - 25) / 15 = 15/15 = 1 meter/sec2
Magnitude of acceleration = (change in speed) / (time for the change) = 2/5 Acceleration = 0.4 meters per second2 north
Acceleration = change in velocity/change in time Acceleration = 96 miles per second - 32 miles per second/8 seconds = 8 miles per second per second or, better expressed 8 mi/s^2 ---------------
20 miles per second / 10 seconds = 2 miles per second ^ 2
The sprinter's acceleration is 2 meters per second squared.
-6.667 miles per second squared
Average acceleration = (change in speed) divided by (time interval)A = (40 - 25) / 15 = 15/15 = 1 meter/sec2
30 m/s The acceleration due to gravity is 9.81 m/s2. So, after the 1st second, it is traveling 9.81 m/s. After the 2nd second, it is traveling 19.62 m/s. After the 3rd second, it is traveling about 30 m/s.
Magnitude of acceleration = (change in speed) / (time for the change) = 2/5 Acceleration = 0.4 meters per second2 north
Well if it accelerates, it speeds up so it won't stop. If you mean decelarate, it decreases 10 ft/s every second, so 50/10 is 5 seconds
2100 ft in 11 seconds is 190.90 ft per second. Traveling that distance in 1 second you are going 130.15 mph.
So acceleration is an increase of speed every second. The increase of speed was 9miles/sec and this was over 3 seconds. Therefore there was an acceleration of 3 miles/second every second i.e. 3m/s2
a = vf - vi/Δt, where a is acceleration, vf is final velocity, vi is initial velocity, and Δt is time interval. a = (7m/s - 1m/s)/30s = 6m/s/30s = 0.2m/s/s or 0.2m/s2
After 15 seconds, the train's speed would be 7.5 miles per second. This can be calculated by multiplying the acceleration (0.5 miles per second) by the time (15 seconds).
Acceleration = change in velocity/change in time Acceleration = 96 miles per second - 32 miles per second/8 seconds = 8 miles per second per second or, better expressed 8 mi/s^2 ---------------