a student ignites a firecracker. The sound is reflected from a wall located at a distance of 275m away and the echo is heard 1.6s after, what is the speed of sound ?

so for this, do we double the 275 to get the distance, and then put that and the 1.6s into the equation speed=(distance)/(time) ?

Question

a student ignites a firecracker. The sound is reflected from a wall located at a distance of 275m away and the echo is heard 1.6s after, what is the speed of sound ?

so for this, do we double the 275 to get the distance, and then put that and the 1.6s into the equation speed=(distance)/(time) ?

jamesj · Answer

yes, exactly.  Use the same procedure as your last question.

anonymous · Answer

thankyouuuu so much ! :D