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Margaret [11]
2 years ago
11

A body accelerates uniformly from rest at 2m/s square. calculate it's velocity after traveling 9m.​

Physics
1 answer:
Talja [164]2 years ago
3 0

Answer:

6m/s

Explanation:

Given parameters:

Initial velocity  = 0m/s

Acceleration  = 2m/s²

Distance  = 9m

Unknown:

Final velocity = ?

Solution:

To solve this problem, we use the expression below:

         v²  = u²  + 2as

v is the final velocity

u is the initial velocity

a is the acceleration

s is the distance

        v²   = 0² + (2 x 2 x 9) = 36

        v  = 6m/s

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Similarly plug in 3 for n for first overtone and determine the value of frequency

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Answer:

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We need to find the work done against gravity when lowering a

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Substitute these value in the rule

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<em>The work done against gravity is 78.4 J</em>

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