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3 years ago

10

What is the final speed of a 60 kg boulder dropped from a 111 meter cliff

1 answer:

saveliy_v [14]3 years ago

3 0

After rolling off the edge of the cliff and falling ' M ' meters down,
the speed of the boulder is

Square root of ( 19.6 M ) .

If M=111 meters, then the speed is <em>46.64 meters per second</em>.

We have known for roughly 500 years that if there's no air resistance,
the mass of the falling object makes no difference, and all objects fall
with the same acceleration, speed, time to splat, etc.

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4 years ago

What is the best definition of

Brut [27]

Answer:

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2 years ago

Two one-coulomb point charges are at a distance of 1.67 m from each other. What is the size of the electric force between the tw

pychu [463]

Explanation:

The given data is as follows.

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Hence, putting the given values into the above formula as follows.

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Therefore, number of falcon rockets will be calculated as follows.

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3 years ago

n electric motor rotating a workshop grinding wheel at 1.10 102 rev/min is switched off. Assume the wheel has a constant negativ

Schach [20]

Answer:

Time taken to stop = 6 sec

Explanation:

Given:

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Find:

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Computation:

Initial velocity (u) = (1.10 × 10² × 2π rad) / 60 sec

Initial velocity (u) = 11.52 rad / sec

We know that,

V = U +at

t = (v-u)a

t = (0 - 11.52) / (-1.92)

Time taken to stop = 6 sec

3 0

3 years ago