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PSYCHO15rus [73]
2 years ago
9

Which of the following situations is an example of a mostly elastic collision?

Physics
2 answers:
Serjik [45]2 years ago
8 0
It would probably be A
Tpy6a [65]2 years ago
4 0
Your answer will be A
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The potential energy of the block is given by:
V = m*g*h
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The potential energy of a spring is given by:
V = 0.5 * k * x²

k spring constant
x compression of the spring

If the block starts from rest it has potential energy, but no kinetic energy. As it slides down the incline potential energy is converted into kinetic energy. When the block hits the spring the kinetic energy is converted into spring's potential energy. If the spring is fully compressed and the block is at rest again, the block has transferred all its energy into the spring. No energy is lost. So we can write:

m * g * h = 0.5 * k * x²

m = 0.5 kg
g = 9.81 m/s²
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The answer is 3) 480 joules
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A lever has an input arm 50 centimeters long and an output arm 40 centimeters long. What is the mechanical advantage of the leve
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A father is trying to teach his child to ice skate. As the child stands still, the father pushes him forward with an acceleratio
rjkz [21]

Hi there!

We can use Newton's Second Law:

\Sigma F = ma

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a = acceleration (m/s²)

We are given the mass and acceleration, so:

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Two 25.0N weights are suspended at opposite ends of a rope that passes over a frictionless pulley. What is the tension in the ro
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Answer:

tension in rope = 25.0 N

Explanation:

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       ∑F = F - W = 0

       so

       F = W

       so tension in rope = F  = T  = 25 N

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