2 years ago

The correct answer using the graphical method and analytical method of vector addition will always be identical.

Mathematics

1 answer:

11Alexandr11 [23.1K]2 years ago

4 0

Answer:

the answer is true!

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Initially a wheel rotating about a fixed axis at a constant angular deceleration of 0.5 rad/s 2 has an angular velocity of 0 rad

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Answer:

$\theta = 5.83\ rad$

Step-by-step explanation:

given,

angular deceleration, α = -0.5 rad/s²

final angular velocity,ω_f = 0 rad/s

angular position, θ = 6.1 rad

angular position at 3.9 s = ?

now, Calculating the initial angular speed

$\omega_f^2 = \omega_i^2 + 2 \alpha \theta$

$0 = \omega_i^2 - 2\times 0.5\times 6.1$

$\omega_i = \sqrt{6.1}$

$\omega_i = 2.47\ rad/s$

now, angular position calculation at t=3.9 s

$\theta = \omega_i t + \dfrac{1}{2}\alpha t^2$

$\theta =2.47\times 3.9 - \dfrac{1}{2}\times 0.5\times 3.9^2$

$\theta = 5.83\ rad$

Hence, the angular position of the wheel after 3.9 s is equal to 5.83 rad.

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3 years ago

Quotient of 0.72 / 4

sasho [114]

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Step-by-step explanation:

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A spider is climbing up a 30 meter building. Each day it climbs five meters and slides back one meter. How many days will it tak

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The lateral surface area of a cylinder is given by the formula S=2 \pirh. Solve the equation for r.

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S = 2 * (pi) * r * h.....for r
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EleoNora [17]

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Step-by-step explanation:

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