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Agata [3.3K]
3 years ago
7

Why is it harder to get something moving than to keep it moving?

Physics
1 answer:
vovikov84 [41]3 years ago
6 0

Answer:

momentum

Explanation:

when something starts rolling momentum keeps it going.

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<span>Ans : Initial E = KE = ½mv² = ½ * 1.2kg * (2.2m/s)² = 2.9 J max spring compression where both velocities are the same: conserve momentum: 1.2kg * 2.2m/s = (1.2 + 3.2)kg * v → v = 0.6 m/s which means the combined KE = ½ * (1.2 + 3.2)kg * (0.6m/s)² = 0.79 J The remaining energy went into the spring: U = (2.9 - 0.79) J = 2.1 J = ½kx² = ½ * 554N/m * x² x = 0.0076 m ↠(a)</span>
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Which describes how to generate a real image of an object using a concave mirror?The object must be closer to the mirror than th
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In order to form a real image using a concave mirror, the object must be placed beyond the center of curvature of the mirror. Therefore, the object must be further from the mirror than the focal point. The image that will form will be real, but it will also be inverted and its magnification will be less than 1, meaning it will be smaller than the actual object.
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Melting, freezing, and boiling are _____________ changes. Question 3 options: A. compound
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Melting freezing and boiling are molecular changes


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The property of water that contributes to its ability to stick to certain surfaces is called
Gekata [30.6K]

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A 50.0-kg crate is being pulled along a horizontal smooth surface. The pulling force is 10.0 n and is directed 20.0° above the h
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Explanation:

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Here we have:

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3 years ago
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