Question

u=20km/hr
v=80km/hr
t=4min,
find a and s ?

-:where:-

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

Answer 1

Answer:

Acceleration = 900km/hr^2

Distance = 10/3 km

Explanation:

U = 20 km /hr

V = 80 km/hr

T = 4 min = 4/60 hours = 1/15 hours

Acceleration

Acceleration = v - u / t

Acceleration = 80 - 20 / 1/15

a = 900 km/hr ^ 2

Distance

s = ut + at ^ 2 /2

s = 20( 1/15) + 900(1/15)(1/15) /2

s = 4/3+2

s = 10/3 km