Question

fill in the blank question
consider a rock of mass 20 kg, the weight of the rock on earth is ____ n and the weight of the rock on moon is ____ n. assume the acceleration due to gravity on the surface of the earth is $10\\ \text{m/s}^2$ and on the moon is $1.6\\ \text{m/s}^2$.
8 of 25 concepts completed

Explanation:

Step1: Recall weight formula

Weight $W = m \times g$, where $m$ = mass, $g$ = gravitational acceleration

Step2: Calculate weight on Earth

Substitute $m=20\ \text{kg}$, $g_{\text{earth}}=10\ \text{m/s}^2$
$W_{\text{earth}} = 20 \times 10 = 200\ \text{N}$

Step3: Calculate weight on Moon

Substitute $m=20\ \text{kg}$, $g_{\text{moon}}=1.6\ \text{m/s}^2$
$W_{\text{moon}} = 20 \times 1.6 = 32\ \text{N}$

Answer:

200, 32