4. If a person weighs 500 N on Earth, what would she weigh on Jupiter, where the acceleration due to gravity is 26 m/s2? Show all work leading to your answer.

Question

4.	If a person weighs 500 N on Earth, what would she weigh on Jupiter, where the acceleration due to gravity is 26 m/s2?  Show all work leading to your answer.

tumblewolf · Answer

First you need to find the mass on earth that would be 
490 N = F = ma = (kg)(m/second squared) 
so F=ma you have F and a so F/a=m so 490/9.8= 50. so her mass is 50 kg. 

Next we have to find that on Jupiter: 
F=ma 
F=(50 kg)(26m/second squared) 
F= 1300 N

anonymous · Answer

can you help with another

tumblewolf · Answer

Sure let's see it

anonymous · Answer

5.	If a freely falling rock were equipped with a speedometer, by how much would its speed readings increase with each second IF it were on a planet where g = 20 m/s2?  Show all work leading to your answer.

tumblewolf · Answer

For the first question, the gravitational acceleration is 9.8m/s^2. 

So for each second, the speed increases by another 9.8m/sec. 

You multiply the number of seconds times the acceleration. Cancel the Seconds and you get m/s. 

10 sec * 9.8m/s^2 = 98m/s 

Same for a planet where gravity is 20m/s^2. Speed increases by 20m/s for each second

so like in simpler terms 
 V = g*t 
V = 20*1 = 20 m/s. 
V = 20*2 = 40 m/s. 
V = 20*3 = 60 m/s. 
Increase = 20 m/s with each second.

anonymous · Answer

thank you so much!

tumblewolf · Answer

No problem at all! Glad I could help