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satela [25.4K]
3 years ago
6

A 1500-kg car accelerates from 0 to 25 m/s in 7.0 s. What is the average power delivered by the engine (1 hp

Physics
1 answer:
LiRa [457]3 years ago
5 0
Answer:

The average power delivered by the engine is 90 hp.
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Answer:

x ’= 1,735 m,  measured from the far left

Explanation:

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Let's fix a reference system located at the point of rotation and that the anticlockwise rotations have been positive

             

They tell us that we have a mass (m1) on the left side and another mass (M2) on the right side,

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          x_ {cm} = 0.2 m

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          w₁ 1.2 + mg 0.2 - W₂ x = 0

          x = \frac{m_1 g\ 1.2 \ + m g \ 0.2}{M_2 g}

          x = \frac{m_1 \ 1.2 \ + m \ 0.2 }{M_2}

let's calculate

          x = \frac{2.9 \ 1.2 \ + 4 \ 0.2 }{8.00}2.9 1.2 + 4 0.2 / 8

           

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measured from the pivot point

measured from the far left is

           x’= 1,2 + x

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Answer:

120 N

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