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2 years ago

A machine has mechanical advantages 2, what does it means. plzz tell me the ans

Physics

1 answer:

Vlad [161]2 years ago

3 0

Answer:

Mechanical advantage is the measure of the force amplification achieved by using a tool , mechanical device or machine . ... So MA = 2 means that for example if you apply 100 N then your machine will multiply that force and generate 200 N..

Explanation:

Hope it helps you..

Your welcome in advance..

(ㆁωㆁ)

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An airplane flies eastward and always accelerates at a constant rate. At one position along its path, it has a velocity of 34.5

Inessa05 [86]

Answer:

the acceleration of the airplane is 5.06 x 10⁻³ m/s²

Explanation:

Given;

initial velocity of the airplane. u = 34.5 m/s

distance traveled by the airplane, s = 46,100 m

final velocity of the airplane, v = 40.7 m/s

The acceleration of the airplane is calculated from the following kinematic equation;

v² = u² + 2as

$2as= v^2 - u^2\\\\a = \frac{v^2 - u^2}{2s} \\\\a = \frac{(40.7)^2 -(34.5)^2}{2 \times 46,100} \\\\a = 5.06 \ \times \ 10^{-3} \ m/s^2$

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3 years ago

A block slides down a frictionless inclined ramp. If the ramp angle is 17.0° and its length is 30.0 m, find the speed of the blo

shutvik [7]

Answer:

v = 17.15 m/s

Explanation:

given,

angle of ramp = 17.0°

length of ramp(l) = 30 m

height of the ramp =

$h = l sin \theta$

$h = 30 sin 30^0$

h = 15 m

using energy of conservation

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$\dfrac{1}{2}v^2 = gh$

$v = \sqrt{2gh}$

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v = 17.15 m/s

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3 years ago

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konstantin123 [22]

Answer: His average speed in mph over the last 400 m is 7.7 m/s.

Explanation:

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Hence, his average speed in mph over the last 400 m is 7.7 m/s.

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