Answer:
1190 m
Explanation:
From the question,
The speed of sound = 2×distance at which the lightning strike/time
v = 2x/t................... Equation 1
make x the subject of the equation
x = vt/2............... Equation 2
Given: t = 7 s,
Constant: v = 340 m/s (at 15 °C)
Substitute these values into equation 2
x = 340(7)/2
x = 2380/2
x = 1190 m.
Hence lightning strike 1190 m away.
