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4 years ago

PLZ HELP ME 3 MIINS 50 POINTS AND BRAINLEIST

Physics

2 answers:

inessss [21]3 years ago

7 0

The rock weighs 150 N.

2. To calculate mechanical advantage, divide the output force of the lever by the input force

on the handle of the lever. If the rock weighs 150 N, the force of its weight is also 150 N. Therefore, 150 N/ 30 N = 5.

Give me BRAINLEIST please!

yawa3891 [41]3 years ago

4 0

Answer:

I calculated the mechanical advantage. It is in the picture above

but I haven't gotten the weight but I know the general formula of weight 2 be m×g (mass ×gravity) I will get back 2 u once I solve it plz don't be offended and plz Mark me brainliest answer

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alex41 [277]

Answer:

You should choose airspeed 158.11 km/h at 18.4° west of south

Explanation:

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At first we must find the resultant velocity of your plane and the wind

The south and west are perpendicular, then the resultant velocity is

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→ $v_{p}=150$ km/h , $v_{w}=50$ km/h

→ $v_{R}=\sqrt{(150)^{2}+(50)^{2}}=158.11$ km/h

To cancel the velocity of the wind, the pilot should maintain the velocity

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The direction of the velocity is the angle between the resultant velocity

and the vertical (south)

→ The direction of the velocity is $tan^{-1}\frac{50}{150}=18.4$ °

The direction of the velocity is 18.4° west of south

<em>You should choose airspeed 158.11 km/h at 18.4° west of south</em>

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emmasim [6.3K]

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brainly.com/question/26711747

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