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tino4ka555 [31]
3 years ago
12

Physics question, any help is appreciated :)

Physics
2 answers:
Gekata [30.6K]3 years ago
8 0

Runner 2 sees Runner 1 passing him with a velocity of 17 m/s west.


Rainbow [258]3 years ago
4 0

The velocity of 17 m/s west is the answer.

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4 0
3 years ago
Once again we have a skier on an inclined plane. The skier has mass M and starts from rest. Her speed at the bottom of the slope
mars1129 [50]

Answer:

v = 31.3 m / s

Explanation:

The law of the conservation of stable energy that if there are no frictional forces mechanical energy is conserved throughout the point.

Let's look for mechanical energy at two points, the highest where the body is at rest and the lowest where at the bottom of the plane

Highest point

       Em₀ = U = m g y

Lowest point

     Em_{f} = K = ½ m v²

As there is no friction, mechanical energy is conserved

       Em₀ = Em_{f}

       m g y = ½ m v²

       v = √ 2 g y

Where we can use trigonometry to find and

       sin 30 = y / L

       y = L sin 30

Let's replace

      v = RA (2 g L sin 30)

Let's calculate

      v = RA (2 9.8 100.0 sin30)

      v = 31.3 m / s

4 0
3 years ago
Pls help asapppppppppppppppppppp
mestny [16]

Answer: D

Explanation:

5 0
3 years ago
Read 2 more answers
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