Question

17) A girl standing at a hilltop
shouts loudly in front of a cliff
and hears his echo after 5
seconds. If the speed of the
sound is 346m/s, what is the
distance of the girl from the
cliff? *
O
900m
O 1730m
O 865m
0830m​

Answer 1

Answer:

A girl standing at a hilltop shouts loudly in front of a cliff and hears his echo after 5 seconds. If the speed of the sound is 346m/s,