Question

a car accelerates from rest at 8 m/s2 for 10s
A) how far has the car traveled after 10s ?
B) what is the velocity of the car at the end of the 10s ?

Answer 1

Hey!

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We have,

u=0
a= 8 m/s^2
t= 10 s


A)

s=?
s= ut + 1/2 at^2
s= 0 × 10 + 1/2 × 8 × 10 × 10
s= 0 + 1/2 × 800
s= 1×400
s= 400 m

B)

v= ?
v - u= at
v - 0 = 8×10
v= 80
v= 80 m/s


NOTE -:

u= initial velocity
v= final velocity
t= time taken
s= distance travelled
a= acceleration

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Hope it helps...!!!