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horsena [70]
3 years ago
7

A bicyclist travels in a circle of radius 30.0 m at a constant speed of 8.00 m/s. the bicycle-rider mass is 82.0 kg calculate ne

t force
Physics
1 answer:
IceJOKER [234]3 years ago
7 0
F=m*(v^2/r)
F=82*(8^2/30)
F=174.9N
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Yuri [45]

Answer:

h₍₁₎ = 495,1 meters

h₍₂₎ = 480,4 m

h₍₃₎ = 455,9 m

...

..

Explanation:

The exercise is "free fall". t = \sqrt{\frac{2h}{g} }

Solving with this formula you find the time it takes for the stone to reach the ground (T) = 102,04 s

The heights (h) according to his time (t) are found according to the formula:

h(t) = 500 - 1/2 * g * t²

Remplacing "t" with the desired time.

4 0
3 years ago
A swimmer is swimming to the left with a speed of 1.0 m/s when she starts to speed up with constant acceleration. The swimmer re
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Answer:

Correct answer: t = 2.86 seconds

Explanation:

We first use this formula

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where V is the final velocity (speed), V₀ the initial velocity (speed),

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We will calculate the acceleration from this formula

a = (V² - V₀²) / (2 d) = (2.5² - 1²) / (2 · 5) = (6.25 - 1) / 10 = 5.25 / 10

a = 0.525 m/s²

then we use this formula

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t = 2.86 seconds

God is with you!!!

6 0
3 years ago
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The teardrop could be an example as it was designed for that purpose, and most notably planes and such aero traveling vehicles
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monitta
On Earth, a cannonball with a mass of 20 kg would weigh 196 Newtons.
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F=20kg x 9.8m/s^2= 196 Newtons

BUT on the moon, acceleration due to gravity is 1.6 m/s^2,
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5 0
3 years ago
Why does a stream or river change direction when going down a steep mountain
ziro4ka [17]

Answer:

gravity

Explanation:

6 0
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