The answer will be 5 m/sec/sec
300m/sec - 200m/sec divided by 20 seconds will get you 100m/sec divided by 20 seconds, which then equals 5
Average acceleration = change in velocity/change in time
A = 300 mi/s - 200 mi/s/20 s - 0 s
Acceleration = 5 miles per second squared
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It accelerates at a speed of 5m/s
acceleration is (20-5)/3 = 5 m/s/s
5 m/s2
The car's uniform acceleration is (change in speed) divided by (change in time) = (24 m/s) / (2.95 s) = 8.1356 meters/sec2. Call this number ' A ' for acceleration. Change in speed = ( A ) times (time) Time = (change in speed) / A = (20 - 10) / A = 10/A = 0.81356 seconds (rounded)
It is 0.1 metre per second-squared.
It is 0.1 metre per second-squared.
By increasing speed over a fixed period of time, you increase the distance you travel in that period of time. If you drive 20 mph for an hour, you go 20 miles. If you drive 30 mph for that same hour, you go 30 miles. Just like you knew you would.
Acceleration = change in speed/time = (20-5)/3 = 15/3 = 5 units of speed per second. It is not possible to be any more precise because the unit of speed (kilometres per hour, miles per hour, metres per second) is unspecified.
Average acceleration = (change in speed) divided by (time for the change)= (80) / (20) = 4 meters per second2
5 m/s2
Assuming that acceleration is constant during that time, just divide the change in speed by the time.
well we know that we have two speeds and a time. So, initial speed = 80 final speed = 60 change in time = 6 Now acceleration in this case will be measured in kilometers per hour per second (i.e. every x seconds, y kilometers per hour are gained in speed) So we simply apply the formula Acceleration = (final speed - initial speed)/ change in time = (80 - 60)/6 = 20/6 = 3.6666667 km/h/s
Magnituide of acceleration = (change in speed) divided by (time for the change)= (final speed - initial speed) divided by (time for the change)= 2/20 = 0.1 meter per second2Note that this is the magnitude of the acceleration, obtained by working with the speeds.We don't know the initial or final velocities, because there's no information regarding directions.Similarly, we only know the magnitude of the acceleration, not its direction.
It increases by 20 centimetres per second in the given direction for each second that elapses.
Acceleration = Change in speed/Time Time = Change in Speed/Acceleration = 65mph/20mph per s = 65/20 seconds = 3.25 seconds
3 ms-2
The formula for finding time based on acceleration and speed is: (Delta)t = (Delta)v/a Change in time = change in speed / acceleration t = 75-15 / 20 t = 60 / 20 t = 3 seconds
Speed of sound increases, when temperature increases. Speed of sound in air is c ≈ 331 + 0.6 × T. T = Temperature in °C. Speed of sound in air at 20°C is c ≈ 331 + 0.6 × 20 = 343 m/s.
Remember the equation for acceleration. a = (v - u ) / t Were a = acce;leration v = final speed ( 20 m/s) u = initial speed ( 0 m/s) t = time ( 5 s) Substituting a = ( 20 m/s - 0 m/s) / 5s a = 20m/s / 5s a = 4 m /s^2