Question

A car falls off a ledge and drops to the ground in 0.9 s. If the value of g is 10 m/s then speed of car on striking the ground is
(a) 5m's

(b) 8 m/s

(c) 9 m/s

(d) 18 m/s​

Answer 1

Answer:

c 9 m/ s

Explanation:

u=0

g=10 m/s square

t= 0.9sec

v=u+gt

v=0+10×0.9

v=0+9

v=9 m/ s