Chapter 1.6, Problem 1P

Engineering Mechanics: Statics & D...

14th Edition
Russell C. Hibbeler
ISBN: 9780133915426

Chapter
Section

Engineering Mechanics: Statics & D...

14th Edition
Russell C. Hibbeler
ISBN: 9780133915426

(a)

To determine

To convert:

The weight in newtons of an object that has a mass in kg.

The weight in newtons of an object that has a mass of 8kg is 78.5N_.

Explanation

Given:

The mass of the object is 8kg.

Write the conversion for the quantity.

8kg

Write the conversion formula.

kg=9.81N

Conclusion:

Convert the weight in newtons from kg.

W=8kg×9.81Nkg=78.5N

Thus, the weight in newtons of an object is 78.5N_.

To determine

To convert:

The weight in newtons of an object that has a mass in kg.

The weight in newtons of an object that has a mass of 0.04kg is 0.392N_.

Explanation

Given:

The mass of the object is 0.44kg.

Write the conversion for the quantity.

0.44kg

Write the conversion formula.

kg=9.81N

Conclusion:

Convert the weight in newtons from kg.

W=0.04kg×9.81Nkg=0.392N

Thus, the weight in newtons of an object is 0.392N_.

(c)

To determine

To convert:

The weight in newtons of an object that has a mass in Mg.

The weight in newtons of an object that has a mass of 760Mg is 7.458MN_.

Explanation

Given:

The mass of the object is 760Mg

Write the conversion for the quantity.

760Mg

Write the conversion formula.

Mg=9806.65N

Conclusion:

Convert the weight in newtons from Mg.

W=760Mg×9806.65NMg=(7.458×106N)×106MNN=7.458MN

Thus, the weight in newtons of an object is 7.458MN_.

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