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Andre45 [30]
3 years ago
7

spring is compressed 4.2 cm. If a box is placed at the end of the compressed spring, and let go, how far up the ramp will the sp

ring cause the box to travel? Ignore any frictional effects.
Physics
1 answer:
mariarad [96]3 years ago
3 0

Answer:

0.81 m

Explanation:

K= 36 N/m

θ= 30°

mass m = 8 kg

let the distance moved by the box be d

We can  solve this using

Apply conservation of energy

\frac{1}{2}kx^2= mg sin\theta\times d

d= 1/2×k×x^2/ mg sinθ

d= \frac{1}{2}\times36(0.042)^2/8\times9.81sin30

d  = 0.81 m

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W ≅ 292.97 J

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A helicopter has blades of length 4.0 m rotating at 3.0 rev/s in a horizontal plane.If the vertical component of the Earth’s mag
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