Askater goes down a hill with a constant acceleration of 2.25 m/s2 for 50 meters. if the skater's final velocity was 20 m/s, calculate her initial velocity.

The initial velocity of the skater is 13.22 m/s.

Explanation:

Given that,

Acceleration of the skater,

Distance covered, d = 50 m

The skater's final velocity was, v = 20 m/s

We need to find the initial velocity of the skater. It can be calculated using third equation of motion as :

So, the initial velocity of the skater is 13.22 m/s. Hence, this is the required solution.

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Kinematics