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3 years ago

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Two vectors A and B are at right angles to each other. The magnitude of A is 3.00. What should be the length of B, so that the m

agnitude of their vector sum is 5.00?

1 answer:

AfilCa [17]3 years ago

7 0

Answer: length of B =4.00

Explanation:

for the vectors A and B and the angle between them as x.

Magnitude of the sum of A and B is given as = √(A²+B²+2ABcosx

where

Magnitude of A = 3.00

Magnitude of the sum of A and B is 5.00

5.00=√(A²+B²+2ABcos90°

5.00= √3² +b² +0

5²= 3² +b²

25=9+b²

b²= 25-9

b² = 16

b= √16

b= 4

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Answer:

a

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b

$F_A_H = 358.58 \ N$

Explanation:

From the question we are told that

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The period of the Ferris wheel is $T = 24 \ s$

The mass of the passenger is $m_g = 40 \ kg$

The apparent weight of the passenger at the lowest point is mathematically represented as

$F_A_L = F_c + W$

Where $F_c$ is the centripetal force on the passenger, which is mathematically represented as

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Where $w$ is the angular velocity which is mathematically represented as

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substituting values

$w = \frac{2* 3.142 }{24}$

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substituting values

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So

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$F_c = 33.42 \ N$

W is the weight which is mathematically represented as

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So

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The apparent weight of the passenger at the highest point is mathematically represented as

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substituting values

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3 years ago

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Answer:

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Nutka1998 [239]

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The terminal speed acquired by the body when,

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It is given,

Drag force is directly proportional to the speed,

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V is the speed,

C is the constant,

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