A powerful motorcycle can accelerate from rest to 28 metre per second in only 4 seconds what is the average acceleration? How far does it travel in that time
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DISTANCE =AVEREAG SPEED *TIME
Dbm
To calculate the average acceleration, we need to use the formula:
average acceleration = (final velocity - initial velocity) / time
In this case, the initial velocity is 0 m/s (since the motorcycle starts from rest), the final velocity is 28 m/s, and the time is 4 seconds. Plugging the values into the formula, we get:
average acceleration = (28 m/s - 0 m/s) / 4 s
= 28 m/s / 4 s
= 7 m/s²
So, the average acceleration of the motorcycle is 7 m/s².
To calculate the distance the motorcycle travels in that time, we can use the formula:
distance = initial velocity * time + (1/2) * acceleration * time²
In this case, the initial velocity is 0 m/s, the time is 4 seconds, and the acceleration is 7 m/s². Plugging the values into the formula, we get:
distance = (0 m/s) * (4 s) + (1/2) * (7 m/s²) * (4 s)²
= 0 m + (1/2) * 7 m/s² * 16 s²
= 0 m + (1/2) * 7 m/s² * 256 s
= 0 m + 128 m
= 128 m
So, the motorcycle travels a distance of 128 meters in that time.
acceleration= changevelociyt/time=28/4 m/s^2
distance: avg speed=14m/s, time is 4 seconds
disistance=avgspeed*time