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inna [77]
2 years ago
6

Evaluate the numerical value of the vertical velocity of the car at time t=0. 25s using the expression from part d, where y0=0.

75m, α=0. 95s−1, and ω=6. 3s−1.
SAT
1 answer:
Alex73 [517]2 years ago
7 0

The vertical velocity of the car at the given position and time is 4.905 m/s.

The given parameters:

  • Initial angular velocity, \omega_0 = 6.3 rad/s
  • Time of motion, t = 0.25 s
  • Vertical displacement, y = 0.75 m
  • Angular acceleration, \alpha  = 0.95 \ rad/s^2

<h3>What is vertical velocity?</h3>
  • This is the linear velocity of an object in a vertical direction.

The angular velocity of an object in a circular motion is given as;

\omega_f = \omega _0 + \alpha t\\\\\omega _f = 6.3 \ +\  0.95 \times 0.25 \\\\\omega _f = 6.54 \ rad/s

The vertical velocity of the car at the given position and time is calculated as follows;

v = \omega r\\\\v = \omega_f y\\\\v = (6.54 \ rad/s)\times (0.75\ m)\\\\v = 4.905 \ m/s

Thus, the vertical velocity of the car at the given position and time is 4.905 m/s.

Learn more about vertical velocity here: brainly.com/question/7358392

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EleoNora [17]

Answer:

$17.20

Explanation:

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You can convert these ratios to fractions, with Paul getting 2/9ths, Colin getting 3/9ths and Brian getting 4/9ths

As Brian is effectively getting double the amount of money, you can just take the amount Paul is getting in tips and use that as the reference for how much Brian is earning which is $8.60 x 2 or in this case, $17.20

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Some Jews were mumbling to themselves, saying that Jesus was blaspheming, but then He said "</span>Which is easier: to say, ‘Your sins are forgiven,’ or to say, ‘Get up and walk’?<span> " (Matt 9:5).

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12) a wet shirt is put on a clothesline to dry on a sunny day. The shirt dries because water molecules --------------. Choose th
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A 5 n force is applied to a 3 kg ball to change its velocity from +9 m/s to +3 m/s. the time for the collision is _____ seconds.
Veseljchak [2.6K]

The time for the collision is 3.6S.

<h3>What is collision?</h3>

The collision is an encounter between particles resulting in exchange or transformation of energy.

According to the question,

Force,

F = 5 N

Mass,

m = 3 kg

Velocity,

v₁ = 9 m/s and v₂ = 3 m/s

As we know,

F=m*(v/t)

so,

5=3*(9-3/t)

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