A person observes a firework display for A safe distance of .750 km. Assuming that sound travels at 340 m/s in air what is the t
1 answer:
Answer:
t = 2.2 s
Explanation:
Given that,
A person observes a firework display for A safe distance of 0.750 km.
d = 750 m
The speed of sound in air, v = 340 m/s
We need to find the between the person see and hear a firework explosion. let it is t. So, using the formula of speed.
So, the required time is 2.2 seconds.
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The vertical velocity of the motorcycle at time t is given by (free-fall motion):
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and the negative sign simply means downward direction.