Question

Sami coasted on her bike straight down a hill, accelerating from a speed of 3 m/s to 9 m/s in a total time of 6 s. What was her acceleration?

Answer 1

Explanation:

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Answer 2

Answer:

The acceleration was $1m/s$

Explanation:

• Acceleration is explained as the rate of velocity shifting with time. It also alters both speed and direction.
• The international system of units of acceleration is the metre per second. It is a vector quantity for direction and magnitude.
• The acceleration assists an object in obtaining energy due to gravitational force.

Given

$v_{f} =9m/s} \\v_{i} =3m/s} \\t =6 s$

$a=\frac{v_{f} -v_{i}}{t}$

unknown: a

Substituting the given values into equation

$a =\frac{9m/s-3m/s)}{6s\\}\\\\=1m/s$

Therefore, Acceleration was $1m/s$

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