Question

During the annual shuffleboard competition, Renee gives her puck an initial speed of 8.12 m/s. Once leaving her stick, the puck slows down at a rate of -3.06 m/s2. How long did it take to stop?

Answer 1

Answer:2.65 seconds

Step-by-step explanation:

Let
`a` be the acceleration.

Let
`u` be the initial velocity.

Let
`v` be the final velocity.

Let
`t` be the time taken.

As we know from the equations of motion,

`v=u+at`

Given,
`v=0\\u=8.12ms^(-1)\\a=-3.06ms^(-2)`

`0=8.12-3.06t`

`t=2.65sec`