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3 years ago

Could I get help on this question please . My parents won’t help me /:

Physics

1 answer:

vovikov84 [41]3 years ago

3 0

Answer:

Tarzan will be moving at 7.4 m/s.

Explanation:

From the question given above, the following data were obtained:

Height (h) of cliff = 2.8 m

Initial velocity (u) = 0 m/s

Final velocity (v) =?

NOTE: Acceleration due to gravity (g) = 9.8 m/s²

Finally, we shall determine how fast (i.e final velocity) Tarzan will be moving at the bottom. This can be obtained as follow:

v² = u² + 2gh

v² = 0² + (2 × 9.8 × 2.8)

v² = 0 + 54.88

v² = 54.88

Take the square root of both side

v = √54.88

v = 7.4 m/s

Therefore, Tarzan will be moving at 7.4 m/s at the bottom.

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3 years ago

Driving along a boring stretch of interstate in Illinois, you start experimenting using the average speed equation you learned i

astra-53 [7]

The average speed would be 33.29m/s.
The average speed equation is:

$Average speed = \frac{total distance}{total time}$

First you will need to solve for the distance you traveled in each scenario. So we can solve this by getting the product of speed and the time traveled.

Scenario 1:
Speed = 29m/s
Time = 120s
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Now that you have the distance of both, you can solve for your average speed.

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5 0

3 years ago

PLS HELP! If you are given force and distance, you can determine power if you know (2 points)

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Answer:

C. Time

Explanation:

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3 years ago

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Answer

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Explanation

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3 years ago

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mihalych1998 [28]

Answer: 16N

Explanation:

Given that:

mass of box M= 2 kg

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Final speed V2 = 8 m/s

Time taken T= 0.5 s

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Now, recall that Force is the rate of change of momentum per unit time

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Hence, F = M x (V2 - V1)/T

F = 2kg x (8 m/s - 4 m/s) / 0.5s

F = 2kg x (4 m/s / 0.5s)

F = 2kg x 8 m/s/s)

F = 16N

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3 years ago