Question

3. *A car start from rest and acquire a velocity of 54 km/h in 2 sec.Find*
(i) the acceleration
(ii) distance travelled by car assume motion of car is uniform*​

Answer 1

Answer:

u=0m/s

v= 54 km/h= 15m/s

t=2s

[1] (i) v=u+at

15= 0+ a*2

15/2=a

7.5 m/s^2=a

[2] (iii) 2as=v^2-u^2

2* 7.5*s= (15)^2-(0)^2

15*s=225

s=225/15=15 m

Explanation: