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Digiron [165]
3 years ago
5

By applying the third law of motion, which force is greater when you push on a wall? Your force, the wall’s force, your force an

d the wall’s force are equal or the force saved before pushing the wall.
Physics
2 answers:
o-na [289]3 years ago
8 0

Hello!

By applying the third law of motion, your force and the wall's force are equal.

I hope this helps you! Have a great day!

- Mal

kupik [55]3 years ago
3 0

Answer:

they are equal

Explanation:

since it's an equal and opposite force exerted on both bodies, obviously there's no force greater than the other. however, perhaps you could say that since your mass is smaller, the impact of the force exerted on you is greater than that exerted on the wall since F=ma.

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A 1280 kg car is moving 4.92 m/s. a 509 N force then pushes it forward for 28.7 m. what is its final KE?(unit=J)PLEASE HELP
laila [671]

Answer:

The answer to your question is: total energy = 30100.4 J

Explanation:

Kinetic energy (KE) is the energy due to the movement of and object, its units are joules (J)

Data

mass = 1280 kg

speed = 4.92 m/s

Force = 509 N

distance = 28.7 m

Formula

KE = \frac{1}{2} mv^{2}

Work = Fd

Process

- Calculate Kinetic energy

- Calculate work

- Add both results

KE = \frac{1}{2} (1280)(4.92)^{2}

KE = 15492.1 J

Work = (509)(28.7)

Work = 14608.3 J

Total = 15492.1 + 14608.3

Total energy = 30100.4 J        

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A fully loaded cart with a mass of 2200 kg starts from the top of a 12-meter hill on a roller coaster.
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Answer:

A. potential energy is 258720 Joule

Explanation:

A.Gravitational potential energy is: PE = m × g × h

velocity =  15.33 m/s when the car reaches the bottom of the hill.

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            g = acceleration due to gravity

            h = height from the bottom of hill.

The potential energy is : m×g×h

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where v = velocity

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                         or,   v=15.33 m/s

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