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marshall27 [118]
3 years ago
7

Two forces one of 12N and another of 5N act on abody in such away that they makes an angel of 90 with each other, what is the re

sultant
Physics
1 answer:
Murljashka [212]3 years ago
6 0

Answer:

13 N

Explanation:

From the question,

If two forces act at right angle to each other, Their result force can be calculated using Pythagoras theorem.

R'² = R₁²+R₂²....................... Equation 1

Where R' = Resultant force, R₁ = First force, R₂ = Second force.

Given: R₁ = 12 N, R₂ = 5 N

Substitute these values into equation 1

R'² = 12²+5²

R'² = 144+25

R'² = 169

R' = \sqrt{169}

R' = 13 N.

Hence the resultant force is 13 N

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a) Angular speed of the innermost part: 50 rad/s, outermost part: 21.6 rad/s

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Explanation:

a)

For an object in uniform circular motion, the relationship between angular speed and linear speed is

v=\omega r

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c)

The angular acceleration is given by

\alpha = \frac{\omega_f - \omega_i}{t}

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t is the time

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\omega_i = 50 rad/s (at the innermost part)

\omega_f = 21.6 rad/s (at the outermost part)

t = 74.0 min = 4440 s is the time

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\alpha = \frac{21.6-50.0}{4440}=-6.4\cdot 10^{-3}rad/s

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Learn more about circular motion:

brainly.com/question/2562955

brainly.com/question/6372960

#LearnwithBrainly

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