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devlian [24]
3 years ago
7

HELP!!!!!!

Physics
2 answers:
NemiM [27]3 years ago
5 0
B. Gabriella is slowing down at the same rate that Kendall is speeding up, and Franklin is not accelerating.
Marysya12 [62]3 years ago
4 0

<u><em>Answer </em></u>

B. Gabriella is slowing down at the same rate that Kendall is speeding up, and Franklin is not accelerating.

<u><em>Explanation </em></u>

Acceleration is the rate of change of velocity. It is calculated as follows;

a = (v - u)/t

Where a⇒ acceleration

v ⇒ final velocity

u ⇒ initial velocity

t ⇒ time taken.

<u>For Gabriella; </u>

a = (32-55)/10 = -23/10 = -2.3

Since acceleration is negative, Gabriella was desecration (slowing down.

<u>For Franklin, </u>

a = (50-50)/8.5 = 0

This means no acceleration.

<u>For Kendall; </u>

a = (67-53.2)/6 = 13.8/6 = 2.3

Positive acceleration means, he was speeding up.

From the choices the correct answer is B. Gabriella is slowing down at the same rate that Kendall is speeding up, and Franklin is not accelerating.


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A golf club rotates 215 degrees and has a length (radius) equal to 29 inches. The time it took to swing the club was 0.8 seconds
vichka [17]

Answer:

The average linear velocity (inches/second) of the golf club is 136.01 inches/second

Explanation:

Given;

length of the club, L = 29 inches

rotation angle, θ = 215⁰

time of motion, t = 0.8 s

The angular speed of the club is calculated as follows;

\omega = (\frac{\theta}{360} \times 2\pi, \ rad) \times \frac{1}{t} \\\\\omega =  (\frac{215}{360} \times 2\pi, \ rad) \times \frac{1}{0.8 \ s} \\\\\omega = 4.69 \ rad/s

The average linear velocity (inches/second) of the golf club is calculated as;

v = ωr

v = 4.69 rad/s  x  29 inches

v = 136.01 inches/second

Therefore, the average linear velocity (inches/second) of the golf club is 136.01 inches/second

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David runs 100 m in a time of 9.80 s. Calculate his average speed. State the unit.
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His average speed is 980 units

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Explanation:

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