Question

A cyclist is riding his bike up a mountain trail. When he starts up the trail, he is going 8 m/s. As the trail gets steeper,he slows to 3 m/s in 1 minuet. What is the cyclist acceleration

Answer 1

Acceleration = (change in speed) / (time for the change)

Change in speed = (speed at the end) - (speed at the beginning)

= (3 m/s) - (8 m/s)

= -5 m/s .

Time for the change = 1 minuet = 2 sonatas = 60 seconds

Acceleration = (-5 m/s) / (60 seconds)

= - 1/12 m/s²

= 0.0833 m/s²

= 8-1/3 cm/s²