Determine the velocity of a car that travels 28km in 2.2 hours
1 answer:
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Answer:
T = 5.36 s
Explanation:
given,
depth of the mine shaft = 122.5 m
speed of the sound = 340 m/s
time taken = ?
time taken by the stone to reach at the bottom
using equation of motion
initial speed , u = 0 m/s
t = 5 s
time taken by the sound to travel
d =v x t
t = 0.36 s
total time taken for the sound to reach carol after dropping the stone
T = 5 + 0.36
T = 5.36 s
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I'm not really sure but I do know that it's not 0 because the object is still moving, even if it's only moving at 1 m/s.