Question

A runner can accelerate at a rate of 6m/s2. If they accelerate for 2 seconds, how fast will they be running?

Answer 1

ANSWER

`12m {s}^( - 1)`

Step-by-step explanation

The acceleration of the runner is given by,

`acceleration = (velocity)/(time )`

If the runner accelerates at the rate of


`6m {s}^(2)`

for 2 seconds, then,



`6 = (velocity)/(2)`



We multiply through by 2 to get,



`12 = velocity`



Therefore the runner is moving at a velocity of

`12 \: m {s}^( - 1)`