How do theories differ from Laws and Principles?

1 answer:

8 0

A scientific law is the simple mathematical expression of the relationship involved. A principle is the same relationship expressed in words. A theory is the explanation of the facts that make up the relationship.

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using newtons law a force of 250N is applied to an object that accelerates at a rate of 5M/s2 what is the mass of the object?

AURORKA [14]

Answer:

50 kg

Explanation:

F = ma

250 N = m (5 m/s²)

m = 50 kg

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The deceleration experienced by the gymnast is the 9 times of the acceleration due to gravity.

Now from Newton`s first law, the net force on gymnast,

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Therefore,

$F= ma+W$ OR $F=ma+mg=m(g+a)$

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Substituting these values in above formula and calculate the force exerted by the gymnast,

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