3 years ago

A race car speeds up with an acceleration of 10 m/s2 for 21 s. If its final velocity is 210 m/s, find its initial velocity.

Physics

1 answer:

Gennadij [26K]3 years ago

6 0

Answer:

answer is 0m/ sec

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dedylja [7]

Answer:

$\theta = 76.9 degree$

Explanation:

As we know that the resultant of two vectors is given as

$R = \sqrt{F_1^2 + F_2^2 + 2F_1 F_2 cos\theta$

here we know that

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now we have

$87 = \sqrt{41^2 + 68^2 + 2(41)(68)cos\theta$

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