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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?

Respuesta :

Answer:2.65 seconds

Explanation:

Let [tex]a[/tex] be the acceleration.

Let [tex]u[/tex] be the initial velocity.

Let [tex]v[/tex] be the final velocity.

Let [tex]t[/tex] be the time taken.

As we know from the equations of motion,

[tex]v=u+at[/tex]

Given,[tex]v=0\\u=8.12ms^{-1}\\a=-3.06ms^{-2}[/tex]

[tex]0=8.12-3.06t[/tex]

[tex]t=2.65sec[/tex]

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