QUESTION IMAGE
Question
weight on earth in pounds:
125 lbs
weight on earth in newtons:
(hint: multiply your weight in lbs. by 4.5)
562.5 n
| location | weight on earth (n) | x | gravitational constant (compared to earths surface) | calculated weight (n) |
|---|
| the mountains (earth) |
| x | 0.99 |
| moon |
| x | 0.17 |
| mercury |
| x | 0.39 |
| venus |
| x | 0.85 |
| mars |
| x | 0.39 |
| jupiter |
| x | 2.87 |
| saturn |
| x | 1.32 |
| uranus |
| x | 1.23 |
© the trendy science teacher 2016
Step1: Identify Earth weight in N
From the top, weight on Earth in Newtons is \( 562.5 \) N. So this value is used for all locations.
Step2: Calculate for The Mountains (Earth)
Multiply Earth weight (N) by gravitational constant.
\( 562.5 \times 0.99 = 556.875 \)
Step3: Calculate for Moon
\( 562.5 \times 0.17 = 95.625 \)
Step4: Calculate for Mercury
\( 562.5 \times 0.39 = 220.375 \) (Wait, \( 562.5 \times 0.39 = 562.5\times(0.4 - 0.01)=225 - 5.625 = 219.375 \))
Step5: Calculate for Venus
\( 562.5 \times 0.85 = 478.125 \)
Step6: Calculate for Mars
\( 562.5 \times 0.39 = 219.375 \)
Step7: Calculate for Jupiter
\( 562.5 \times 2.87 = 562.5\times2 + 562.5\times0.87 = 1125 + 489.375 = 1614.375 \)
Step8: Calculate for Saturn
\( 562.5 \times 1.32 = 562.5\times1 + 562.5\times0.32 = 562.5 + 180 = 742.5 \)
Step9: Calculate for Uranus
\( 562.5 \times 0.92 = 562.5\times(0.9 + 0.02)=506.25 + 11.25 = 517.5 \)
Step10: Calculate for Neptune
\( 562.5 \times 1.23 = 562.5\times1 + 562.5\times0.23 = 562.5 + 129.375 = 691.875 \)
Filling the table (Weight on Earth (N) is \( 562.5 \)):
| LOCATION | Weight on Earth (N) | × | Gravitational Constant | Calculated Weight (N) |
|---|---|---|---|---|
| Moon | 562.5 | × 0.17 | 0.17 | 95.625 |
| Mercury | 562.5 | × 0.39 | 0.39 | 219.375 |
| Venus | 562.5 | × 0.85 | 0.85 | 478.125 |
| Mars | 562.5 | × 0.39 | 0.39 | 219.375 |
| Jupiter | 562.5 | × 2.87 | 2.87 | 1614.375 |
| Saturn | 562.5 | × 1.32 | 1.32 | 742.5 |
| Uranus | 562.5 | × 0.92 | 0.92 | 517.5 |
| Neptune | 562.5 | × 1.23 | 1.23 | 691.875 |
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The filled table (with Weight on Earth (N) as \( 562.5 \)) and calculated weights as above.