Im sure this is very easy but just learning

V=velocity

A=acceleration

S=displacement

t=time

if V=4t+5 and S=10m when t=1s, find S when t=2s

just not sure what to do :/

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- February 16th 2009, 06:32 AMdjmccabieKinematics
Im sure this is very easy but just learning

V=velocity

A=acceleration

S=displacement

t=time

if V=4t+5 and S=10m when t=1s, find S when t=2s

just not sure what to do :/ - February 16th 2009, 07:41 AMADARSH
- February 16th 2009, 08:27 AMdjmccabie
so by integrating i get 2t^2 + 5t ???

and does this = s/t?

still a bit uncertain thankyou for helping - February 16th 2009, 08:40 AMADARSH
**1**

**2**

**3**

**4**

**5**

Now at t=1s

s= 2 + 5 +c = 10m

hence c= 3

**6**

Put the value of t= 2s

s= 18+3 =21m

(Nod)

Now tell the step(s) that you dont get or have a doubt in(Smirk) - February 16th 2009, 08:55 AMdjmccabie
thing is i've never really been taught what the '+C' part is just told to write it (which i forgot to do lol) but yes i understand your method thanks