Forces: acceleration with a sun yacht

[wegman14]

[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 doesn't seem to make sense, it seems too fast
a) a= 18/700= .025 m/s^2


c) 700x.025=17.5 m/s?

 

[Dick]

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.

 

[wegman14]

its still not making sense to me, probably because i don't have the kinematics equations

 

[wegman14]

actually nvm i got it, thanks for the help

 

[wegman14]

t= 86400 seconds
V(o)tx(1/2)at
9331200 m

V=0+(at)

2160m/s