Time intervals measured by a clock give the following readings:
1.25s,1.24s,1.27s,1.21s and 1.28s
What is the percentage relative error of the observations?

A bus moving at a speed of 24 m/s begins to slow at a rate of 3 m/s each second. How far does it go before stopping?

A bus moving at a speed of 24 m/s begins to slow at a rate of 3 m/s each second. How far does it go before stopping?