Question

plz answer it fully... with correct answer... No need of silly answer...

Answer 1

u=0m/s
g=10m/s^2.

a) t=2s
using first law of motion
v=u+gt. here a=g
v=0+10×2
v= 20m/s.

b) s=50m.
using third law of motion.
v^2=u^2+2as. here a=g
v^2=0 +2×10×50
v^2=1000
v=10√10 m/s

c)s=50.
using second law of motion
s=ut+1/2at^2. here a=g
50=0+1/2×10t^2
t^2=10
t=√10.