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2 years ago

What is the force of an object that has a mass of 42 kg and an acceleration of 3 m/s22?

Physics

1 answer:

Ivanshal [37]2 years ago

5 0

Answer:

$\boxed {\boxed {\sf 126 \ Newtons}}$

Explanation:

According to Newton's 2nd Law of Motion, force is the product of mass and acceleration.

$F=ma$

The mass is 42 kilograms and the acceleration is 3 meters per square second.

$m= 42 \ kg \\a= 3 \ m/s^2$

Substitute the values into the formula.

$F= 42 \ kg * 3 \ m.s^2$

Multiply.

$F= 126 \ kg*m/s^2$

1 kilogram meter per square second is equal to 1 Newton.
The answer we calculated is equal to 126 Newtons.

$F= 126 \ N$

The object's force is <u>126 Newtons.</u>

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A block of metal is 3 cm on each side. It has a mass of 283.5 grams. What is the density of the metal.

Luden [163]

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\\\rho=\frac{m}{V}
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\\\\\rho = 10.5 g/cm^3
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2 years ago

In the year 1178. five monks at Canterbury Cathedral in England observed what appeared to be an asteroid colliding with the moon

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Explanation:

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2 years ago

Please choose the answer that describes the scientific notation for 5,098,000.

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D. 5.098 x 106 is the correct answer when reduced to the proper notation.

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3 years ago

A city bus travels 6 blocks east and 8 blocks north. Each block is 100 m long. If the bus travels this distance in 15 minutes, w

nexus9112 [7]

Answer:

The average speed of the bus, v = 1.55 m/s

Explanation:

Given that,

Number of blocks traveled by bus towards east = 6

Number of blocks traveled by bus towards north = 8

Length of each block = 100 m

Distance traveled by bus towards east 6 x 100 = 600 m

Distance traveled by bus towards north 8 x 100 = 800 m

The total distance traveled, d = 600 + 800 = 1400

Time taken by the bus to travel is, t = 15 minutes

The velocity is given by the formula

v = d/t m

Substituting the values in the above equation

v = 1400 m /(15 x 60) s

= 1.55 m/s

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2 years ago

awhite billiard ball with mass mw = 1.47 kg is moving directly to the right with a speed of v = 3.01 m/s and collides elasticall

pochemuha

Answer:

speed of white ball is 1.13 m/s and speed of black ball is 2.78 m/s

initial kinetic energy = final kinetic energy

$KE = 6.66 J$

Explanation:

Since there is no external force on the system of two balls so here total momentum of two balls initially must be equal to the total momentum of two balls after collision

So we will have

momentum conservation along x direction

$m_1v_{1i} + m_2v_{2i} = m_1v_{1x} + m_2v_{2x}$