A car accelerates from 20m/s to 30m/s over a distance of 250m.Find the acceleration and the time taken?

Question

u=initial speed(speed at the start)

v=final speed

a=acceleration

t=time

s=displacement(distance travelled)

formulas:

v= u + at

s= ut + 1/2atsquared

vsquared=usquared + 2as

you can use them if u want but u can do ur own way...thankyou in advance..i nid it asap..pls2..help!..

Answer 1

a=1

t=10

Answer 2

Know these formulae well!

Plug your numbers into the 3rd equation v^2=.... and you get a.

Now plug a into 1st equation and you get t.

No problem!