Question

A skater starts skating from rest and speeds up to 6m/s^2 in 12 seconds. What is the acceleration of the skater?

Answer 1

Answer:

$0.5 m/s^2$

Explanation:

The acceleration of an object is given by the equation

$a=\frac{v-u}{t}$

where

v is the final velocity of the object

u is the initial velocity

t is the time taken for the velocity to change from u to v

For the skater in this problem we have:

u = 0 (assuming it starts from rest)

v = 6 m/s is the final velocity of the skater

t = 12 s is the time taken

Substituting, we find

$a=\frac{6-0}{12}=0.5 m/s^2$

Answer 2

Answer:

2m/s^2

Explanation: