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4 years ago

Which formula can be used to find the show angle of the resultant vector? A)sin∅=Ry/Rx,B)tan∅=Rx/Ry, C)tan∅=Ry/Rx, D)sin∅=Rx/Ry

Physics

2 answers:

BartSMP [9]4 years ago

8 0

Answer:

Option (c)

Explanation:

There are six trigonometric ratios.

Sin theta, Cos theta, tan theta, cot theta, sec theta and cosec theta.

In a right angled triangle

Sin theta = perpendicular/hypotenuse

Cos theta= base / hypotenuse

Tan theta = perpendicular/ base

Cot theta = base/ perpendicular

Sec theta = hypotenuse/ base

Cosec theta= hypotenuse/ perpendicular

So, tan theta = Ry / Rx

aleksklad [387]4 years ago

4 0

The correct answer would be o/=Ry,B)tan because when you plug in all the other formula you would get a centered dipped like a shell shape

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3 years ago

Determine the stopping distances for a car with an initial speed of 88 km/h and human reaction time of 2.0 s for the following a

seropon [69]

Explanation:

Given that,

Initial speed of the car, u = 88 km/h = 24.44 m/s

Reaction time, t = 2 s

Distance covered during this time, $d=24.44\times 2=48.88\ m$

(a) Acceleration, $a=-4\ m/s^2$

We need to find the stopping distance, v = 0. It can be calculated using the third equation of motion as :

$s=\dfrac{v^2-u^2}{2a}$

$s=\dfrac{-(24.44)^2}{2\times -4}$

s = 74.66 meters

s = 74.66 + 48.88 = 123.54 meters

(b) Acceleration, $a=-8\ m/s^2$

$s=\dfrac{v^2-u^2}{2a}$

$s=\dfrac{-(24.44)^2}{2\times -8}$

s = 37.33 meters

s = 37.33 + 48.88 = 86.21 meters

Hence, this is the required solution.

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4 years ago

PLEASE HELP!!! When you lift a book from the ground to your desk, what kind of work do you do, negative or positive? By lifting

Snowcat [4.5K]

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3 years ago

A candle is placed 30 cm in front of a convex mirror with a focal length of 20 cm, as shown in the diagram. What is the distance

lora16 [44]

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4 years ago

Read 2 more answers

PLEASE HELP, LOOK AT PHOTO PLZ!!!

PIT_PIT [208]

Answer:

a) 17 km

b) 9 km

Explanation:

The distance is the length of the path.

A to C: 5 km

B to C: 4 km

C to B: 4 km

B to C: 4 km

Total distance = 5 km + 4 km + 4 km + 4 km = 17 km

Displacement is the difference between the starting point and ending point.

Displacement = 9 km − 0 km = 9 km

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3 years ago