please help me it is urgent
Attachments:
Answers
Answered by
1
we know that speed = 2distance/time
1) since distance =660m and time =4 sec(first echo will be heard after returning from nearest wall)
:. speed = 2 *660/4=330m /sec
2)speed=2distance/time
330=2*d/4+2=2*d/6=d/3
330=d/3
d= 330*3=990m
:.distance between the two walls = 990+660=1650m
Hope it helps!
1) since distance =660m and time =4 sec(first echo will be heard after returning from nearest wall)
:. speed = 2 *660/4=330m /sec
2)speed=2distance/time
330=2*d/4+2=2*d/6=d/3
330=d/3
d= 330*3=990m
:.distance between the two walls = 990+660=1650m
Hope it helps!
Similar questions