A fish is to be weighed at the harbor. If the mass of the fish is  69.0 kg, what will be the reading on the scale?  A) 676 N B) 7.04 N C) 7.74 N D) 744 N

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lemjay | High School Teacher | (Level 3) Senior Educator

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Note that weight of an object depends on the gravity and its mass. Its formula is:

`W= mg`

where W is the weight, m is the mass and g is the gravity. The value of gravity in earth is 9.8 m/s^2.

So to determine the weight of the fish, substitute m=69.0 kg and g=9.8 m/s^2  to the formula.

`W = 69 * 9.8 = 676.2`

Hence, the weight of the fish, rounded to the nearest whole number, is 676 N.

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