Question

Turnerâs treadmill runs with a velocity of â1.2 m/s and speeds up at regular intervals during a half-hour workout. After 25 min, the treadmill has a velocity of â6.5 m/s. What is the average acceleration of the treadmill during this period?

Answer 1

Answer:

a=0.0035 m/s²

Explanation:

Given that

Initial velocity ,u = 1.2 m/s

Time ,t= 25 min

We know that 1 hr= 60 min = 3600 s

t= 25 x 60 = 1500 s

The final speed ,v= 6.5 m/s

The average acceleration = a

We know v = u +at

6.5 = 1.2 + a x 1500

$a=\dfrac{6.5-1.2}{1500}\ m/s^2$

a=0.0035 m/s²

Therefore the acceleration will be 0.0035 m/s².