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3 years ago

A force of 90N is applied to each cart below, which one will accelerate the fastest?

Physics

2 answers:

Finger [1]3 years ago

8 0

5kg, this is because it ways the least which means it will move easier

siniylev [52]3 years ago

5 0

Answer:

5kg

Explanation:

The cart with the least amount of mass will result in the fastest acceleration.

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What is Newton's third law of motion?

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<h2>Answer : </h2>

Newton's Third law of motion states :

" Every action has an equal and opposite reaction "

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Ex - A book on a table exerts gravitational force on the table and table exerts back a normal force on the book.

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Explanation:

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2 years ago

You choose a bowling ball with a smaller mass because you can roll it down the lane

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based on my research i found that it was newtons law # 1

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An escalator carries you from one level to the next in an airport terminal. The upper level is 4.7 m above the lower level, and

Assoli18 [71]

Answer:

2812.66685 J

-2812.66685 J

Explanation:

m = Mass of person = 61 kg

L = Length of escalator = 7 m

h = Height of escalator = 4.7 m

The angle between the normal force and the distance traveled by the person would be

$\theta=cos^{-1}\frac{h}{L}\\\Rightarrow \theta=cos^{-1}\frac{4.7}{7}\\\Rightarrow \theta=47.82^{\circ}$

Work done is given by

$W=mgLcos\theta\\\Rightarrow W=61\times 9.81\times 7\times cos47.82\\\Rightarrow W=2812.66685\ J$

The work done by the escalator on the when the person rides it up is 2812.66685 J

While going down the angle will be

$\theta=180-47.82\\\Rightarrow \theta=132.18^{\circ}$

$W=mgLcos\theta\\\Rightarrow W=61\times 9.81\times 7\times cos132.18\\\Rightarrow W=-2812.66685\ J$

The work done by the escalator on the when the person rides it down is -2812.66685 J

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3 years ago

3. What is Newton's 1st Law?

pishuonlain [190]

Answer:

Explanation:

for every action there is an equal and opposite reaction

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2 years ago