Problem on beats homework problem

  • Thread starter Thread starter riddhish
  • Start date Start date
Click For Summary
SUMMARY

The discussion revolves around a physics problem involving sound and echoes. A man beats a drum at increasing rates, discovering that the echo is not heard distinctly at 40 beats per minute from his initial position and at 60 beats per minute after moving 90 meters closer to a mountain. The key calculations required are the distance from the mountain to the man's initial position and the velocity of sound. The relationship between the time taken for sound to travel to the mountain and back, and the time between drum beats is crucial for solving the problem.

PREREQUISITES
  • Understanding of sound wave propagation and echo phenomena.
  • Basic knowledge of physics concepts such as frequency and velocity.
  • Familiarity with the formula for calculating distance using speed and time.
  • Ability to solve equations involving rates and intervals.
NEXT STEPS
  • Calculate the distance using the formula: Distance = Speed x Time.
  • Explore the relationship between frequency and time intervals in wave mechanics.
  • Investigate the properties of sound waves, including speed in different mediums.
  • Review problems involving echoes and sound reflection for practical applications.
USEFUL FOR

Students studying physics, educators teaching sound wave concepts, and anyone interested in solving real-world problems involving acoustics and echo phenomena.

riddhish
Messages
6
Reaction score
0
problem on beats , pleaseeee helppppp!

I am puzzled!
problem----- A man standing in front of a mountain beats a drum at regular intervals. The drumming rate is gradually increased and he finds that the echo is not heard distinctly when the rate becomes 40 per minute. He moves nearer to the mountain by 90 meters and finds that the echo is again not heard when drumming rate becomes 60 per minute. Calculate
(a) the distance between the mountain and initial position of the man , and
(b) the velocity of the sound.

I am desperate for helpppppp.
 
Last edited:
Physics news on Phys.org
The echo beat will not be heard when the time for sound to travel to the cliff and back equals the time between beats.
 

Similar threads

Metronome question: Figuring out net torque and expression for beats per minute?
  • · Replies 4 ·
Replies
4
Views
3K
How Many Beats per Second Will the Runner Hear Due to Sound Interference?
  • · Replies 5 ·
Replies
5
Views
2K
Using a CCD camera to solve physics problems
  • · Replies 3 ·
Replies
3
Views
3K
Uniform Motion in 2D - A man chasing a bus
  • · Replies 20 ·
Replies
20
Views
2K
Morin's mechanics problem 2.3 (motionless chain)
  • · Replies 2 ·
Replies
2
Views
3K
Solving Sound Problems: Beats, Interference & Wavelengths
  • · Replies 3 ·
Replies
3
Views
8K
MHB How to Solve Related Rates Problems in Calculus 1
  • · Replies 8 ·
Replies
8
Views
4K
Physics Homework Help - Answers to Problems
  • · Replies 1 ·
Replies
1
Views
2K
What is the Doppler's Effect Problem with a Moving Car and Reflected Sound?
  • · Replies 4 ·
Replies
4
Views
3K
Solve Wave Movement Homework: Speed, Wavelength & Period
  • · Replies 2 ·
Replies
2
Views
2K