A trolley while going down an inclined plane has an acceleration of 2cms

CBSE Class 9
1

a trolley while going down an inclined plane has an acceleration of 2cms. what will be its velocity after 3 sec?

2

u = 0
a = 2 cm/s2
t = 3 s
v = u + at
= 0 + 2 x 3 = 6 cm/s