<span>Height = y
T = 5.8 sec
tf = time to fall
ts = time for sound to travel distance y
T = tf + ts = √[2y/g] + y/330
or
(T - y/330)² = 2y/g
a quadratic in y.
</span><span>y = 141.4 m
</span>hope this helps
Answer:
there's no picture
Explanation:
and what would the question be anyways?
Potential energy = mgh
So, energy gained
= mgh
= 70kg × (9.8m/s²) × 1000m
= 686000 kgm²/s²
= 686000 J