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Nataly_w [17]
3 years ago
8

Find the poing of center of gravityplz show the steps...​

Physics
1 answer:
olasank [31]3 years ago
7 0

Answer:

C

Explanation:

For a uniformly distributed mass, the center of gravity is also the geometric center.  For this shape, the center is at point C.

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Answer:

The force of car 3 on car 2 ≈ 1810.82 N

Explanation:

The equation for the change in momentum of the two cars are;

Conservation of linear momentum

150( 2.2 - v) = 265(1.5-v)

150 × 2.2 - 265×1.5 = (150+265)v

150 × 2.2 - 265×1.5 = -67.5 = 415×v

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The impulse of the net force is the amount of momentum change experienced given by the equation;

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v_0 = The initial velocity

For the the 265 kg mass, we have;

v_f = 0.1627 m/s

v_0 = 1.5 m/s

Which gives the impulse a s F×Δt =  265×0.1627 - 265×1.5 = -354.38 kg·m/s

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Whereby the distance moved in one second is 0.1627 m, we have;

Work done = Force × Distance = Force × 0.1627 = 294.62

Force = 294.62/0.1627 = 1810.82 N.

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