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2 years ago

Mention and explain Isaac Newton's three equations of motion and explain them

Physics

1 answer:

emmainna [20.7K]2 years ago

8 0

Answer:

the first one says to every action there is equal but opposite in reaction

the second one say the time rate of change in momentum is directly proportional to the applied force

the third one says that a body at rest will continue to be at rest until an external force is acted

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A block of ice of mass 4.30 kg is placed against a horizontal spring that has a force constant k = 250 N/m and is compressed a d

OleMash [197]

Answer:

W = 0.060 J

v_2 = 0.18 m/s

Explanation:

solution:

for the spring:

W = 1/2*k*x_1^2 - 1/2*k*x_2^2

x_1 = -0.025 m and x_2 = 0

W = 1/2*k*x_1^2 = 1/2*(250 N/m)(-0.028m)^2

W = 0.060 J

the work-energy theorem,

W_tot = K_2 - K_1 = ΔK

with K = 1/2*m*v^2

v_2 = √2*W/m

v_2 = 0.18 m/s

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2 years ago

Student 1 lifts a box with a force of 500 N and sets it on a tabletop 1.2 m high. Student 2 pushes an identical box up a 5 m ram

Troyanec [42]

The student who did the most work is student 2 with 2500 Joules.

Given the following data:

Force 1 = 500 Newton

Distance 1 = 1.2 meter

Force 2 = 500 Newton

Distance 2 = 5 meter

To determine which of the students did the most work:

Mathematically, the work done by an object is given by the formula;

$Work\;done = Force \times distance$

For student 1:

$Work\;done = 500 \times 1.2$

Work done = 600 Joules

For student 2:

$Work\;done = 500 \times 5$

Work done = 2500 Joules.

Therefore, the student who did the most work is student 2 with 2500 Joules.

Read more: Read more: brainly.com/question/13818347

7 0

2 years ago

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Liquid water heats up and cools down slowly. What causes this property?

Alja [10]

Answer:

water forms hydrogen bonds

Explanation:

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3 years ago

A net force is acting on an object. The object is moving in a

Hoochie [10]

Answer:

The object's velocity would increase due to the change in force.

Explanation:

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2 years ago

Audio frequency range of a human ear is 20Hz - 20000 Hz. Express the range in terms of time period ? Answer needed urgently. Pl.

Feliz [49]

Using the term c in this case is a little confusing. It is more generic to use a general velocity, v. That way, in this case, we know to use the speed of sound.

wavelength*frequency=v

wavelength_20Hz = (345 m/s)/(1/20s)

wavelength_20kHz = (345 m/s)/(1/20000s)

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2 years ago

Mention and explain Isaac Newton's three equations of motion and explain them​

Mention and explain Isaac Newton's three equations of motion and explain them