a bus is initially moving at a velocity of 110 km/hr a long the way a dog is walking at the middle of the road so the driver steps on the brake to reduce the velocity to 50 km/hr it takes 10s for the bus to reduce it's velocity. Find the acceleration of the bus.
Answers & Comments
Verified answer
Answer:
We can use the formula:
acceleration = (change in velocity) / time
First, we need to convert the velocities to meters per second (m/s) because the units of acceleration are usually in m/s^2.
110 km/hr = 30.55 m/s
50 km/hr = 13.89 m/s
The change in velocity is:
30.55 m/s - 13.89 m/s = 16.66 m/s
The time is given as:
time = 10 s
Now we can plug in the values into the formula:
acceleration = (16.66 m/s) / (10 s)
Simplifying:
acceleration = 1.666 m/s^2
Therefore, the acceleration of the bus is 1.666 m/s^2.