Question

the acceleration due to gravity on the moon is 1.6 m/s². the acceleration due to gravity on earth is 9.8 m/s². the weight of a 70 kg person on the moon is select answer , but on the earth its select answer .

Explanation:

Step1: Recall weight formula

Weight $W = mg$, where $m$ is mass and $g$ is acceleration - due - to - gravity.

Step2: Calculate weight on the Moon

Given $m = 70$ kg and $g_{moon}=1.6$ m/s². Then $W_{moon}=mg_{moon}=70\times1.6 = 112$ N.

Step3: Calculate weight on Earth

Given $m = 70$ kg and $g_{earth}=9.8$ m/s². Then $W_{earth}=mg_{earth}=70\times9.8 = 686$ N.

Answer:

The weight of a 70 kg person on the Moon is 112 N, and on the Earth it's 686 N.