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Lina20 [59]
3 years ago
9

A ball rolls horizontally off a table of height 0.6 m with a speed of 9 m/s. How long does it take the ball to reach the ground?

Physics
1 answer:
denis23 [38]3 years ago
4 0

Answer: 0.067 s

Explanation:s = Ut + 1/2at^2

0.6 = 9t + 0.5 *10 *t^2

Where a = g =10m/s/s

Solving the quadratic equation

5t^2 + 9t - 0.6=0,

t= 0.067 s and - 1.7 s

Of which 0.067 s is a valid time

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A flywheel with radius of 0.400 mm starts from rest and accelerates with a constant angular acceleration of 0.600 rad/s2rad/s2.
charle [14.2K]

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Explanation:

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Insert the values

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3 years ago
How much heat is needed to melt 13.74 kg of silver that is initially at 20°C?
salantis [7]

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now from above equation

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The stopwatch will be the most useful in determining the kinetic energy of a 50 g battery- powered car traveling a distance of 10 m.

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Learn more about kinetic energy at: brainly.com/question/12669551

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