physics
posted by Anonymous on .
a car is moving on straight road with uniform acceleration .the speed of the car varies with time as of4m/s,2 s8m/s,so on till 10 seconds. Calculate the distance travelled in 10 seconds.
Asked 30 seconds ago under General Help

What is the speed at t = 0?
When is the speed 8 m/s?
Why are the speeds negative? 
if we assume that
vₒ =  4 m/s,
vb =  8 m/s.
a =?, s = ?
v = vₒ +a•t,
a =(v vₒ)/t = {8 –(4)}/10 = 0.4 m/s².
s= vₒ• t+a•t²/2 = 4•10 – 0.4•100/2 = 20 m.
(vₒ is the magnitude of initial velocity) 
since we have 4m/s^2 s8m/s
it appears that
Vo = 8
a = 4 
I find it impossible to interpret the problem as written. Take more care to separate sentences with a space and capitalize first words. Exponents must be preceded by ^. Velocity data at a specific time should clearly state the time as well as the velocity