Question

An object on Earth's surface has a weight of 609 N. What is its mass?

64.6 kg
62.1 kg
63.3 kg
60.9 kg

Answer 1

62.1 kg

Step-by-step explanation:

Weight = mass × acceleration

609 N = mass × (9.8)

The acceleration is 9.8 because that is the acceleration of gravity.

Divide both sides by 9.8 to isolate the mass.

609N/9.8 = mass

62.1 kg =mass