A boy receives the echo of his clap reflected by a nearby hill 0.8s later. If the speed of sound in air is 3.40m/s; how far is he from the hill?

By: |Published on: Nov 1|Categories: Physics JAMB| 0 comments

A. 66m
B. 136m
C. 264m
D. 528m

Correct Answer:

Option B – 136m

Explanation

Distance = speed × time
= (3400) × (0.812)
= 136m

Users Also Read These:

SEE ALSO  I Electrical potential, II Torque, III Kinetic Energy, IV Momentum. Which of the quantities listed are vectors?

Copyright warnings! Do not copy.