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3 years ago

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A train of mass 5.6 × 10^5kg is at rest in a station.at time t=0s, a resultant force acts on the train and it starts to accelera

te foward. The initial acceleration of the train is 0.75m/s. Calculate the resultant force that acts on train this time.

1 answer:

lana66690 [7]3 years ago

7 0

Answer:

420000N

Explanation:

Given parameters:

Mass of the train = 5.6 x 10⁵kg

Acceleration = 0.75m/s²

Unknown:

Resultant force = ?

Solution:

According to newton's second law, force is the product of mass and acceleration;

Force = mass x acceleration

Resultant force that acts on the train is given below;

Force = 5.6 x 10⁵kg x 0.75m/s² = 420000N

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Answer:

$r=5.278\times 10^{-4}\ m$

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There are 2.2 pounds in a kilogram. if a boys mass is 40kg, what is his height in pounds?

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The simplest way to do this is to set up equivalent fractions, like this-

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Answer:

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b) 133.33 m

c) 53.13°

d) 106.67 m

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That is ,

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77julia77 [94]

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