Forces: acceleration with a sun yacht

  • Thread starter wegman14
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  • #1
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[SOLVED]Forces: acceleration with a sun yacht

Homework Statement


Sunjamming. A “sun yacht” is a spacecraft with a large sail that is pushed by sunlight. Although such a push is tiny in everyday circumstances, it can be large enough to send the spacecraft outward from the Sun on a cost-free but slow trip. Suppose that the spacecraft has a mass of 700 kg and receives a push of 18 N. (a) What is the magnitude of the resulting acceleration? If the craft starts from rest, (b) how far will it travel in 1 day and (c) how fast will it then be moving?


Homework Equations


F=Ma
V=ma


The Attempt at a Solution


I think part a is correct, part b i am lost on, and part c just doesnt seem to make sense, it seems too fast
a) a= 18/700= .025 m/s^2


c) 700x.025=17.5 m/s?
 
Last edited:

Answers and Replies

  • #2
Dick
Science Advisor
Homework Helper
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Where did you get V=ma????? Part a) is ok, But to find a velocity after one day you want to find a relation between acceleration time and velocity. For b) you want a relation between acceleration time and distance. They are just kinematic equations. Like v(t)=v(0)+a*t.
 
  • #3
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its still not making sense to me, probably because i dont have the kinematics equations
 
  • #4
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actually nvm i got it, thanks for the help
 
  • #5
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t= 86400 seconds
V(o)tx(1/2)at
9331200 m

V=0+(at)

2160m/s
 

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