Question

if u=20kmh^-2, v=60kmh^-2 and t=5 sec. then a=? ​

Answer 1

Answer:

2.22 m/s^2

Step-by-step explanation:

u = 20km/h = 50/9 ms^-1

v = 60km/h = 150/9 ms^-1

Now, v = u + at

=> 150/9 = 50/9 + a (5)

=> 5a = (150-50)/9

=> a = 100/45 = 2.22ms^-2