Question

if a train moves 10m distance with constant speed of 14 M per second and next move 5 metre distance with constant speed of 30m\s find average speed

Answer 1

hey,
so,
given,
S=10m
V=14 m/s
s=5m
v=30m/s

To Find,
average speed=?

Formula to be used,
Ave. speed= total distance /total time

solution,
v=s/t
and
Ave. speed = Ts /Tt
therefore,
Ave. speed=V+v
=14+30
=44m/s
T distance=S+s
=10 +5
=15m
now , Tt is not given
therefore,
ave. speed=Ts/Tt
44 =15/Tt
Tt=15/44
Tt=0.34s
so here is your answer
hope it helped u