Question 158515
Remember: {{{Speed=Distance/time}}} ----> {{{S=d/t}}}, working eqn
{{{Speed[b]=S[b]=3300(ft/sec)}}}
{{{Speed[s]=S[s]=1100(ft/sec)}}}
Note: {{{d}}} in question?
In our working eqn, we get:
{{{d=S*t}}}, where {{{S=S[b]-S[s]}}},---> why?
When the target was hit, sound travelled back 1.5 sec later. It does not mean you hit the target in 1.5 sec, you hit earlier than that. We need to subtract the speed of sound for that matter. Continuing:
{{{S=(3300-1100)(ft/sec)=2200(ft/sec)}}}
Then,
{{{d=(2200(ft/cross(sec)))(1.5cross(sec))}}}
{{{d=3300ft}}} ---------------------> total distance of the target
Thank you,
Jojo