An underground mine elevator descends 12% of the total depth every minute. The total depth of the elevator is 75 meters below th
2 answers:
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Answer:
Step-by-step explanation:
u = Initial velocity of baseball
= Angle of hit =
x = Displacement in x direction = 400 ft
y = Displacement in y direction = 15 ft
= Height of hit = 2.5 ft
= g = Acceleration due to gravity =
t = Time taken
Displacement in x direction
Displacement in y direction
The minimum initial velocity needed for the ball to clear the fence is
For this case we have the following equation:
Where, we have the following variables:
x: time in seconds
y: speed in feet per seconds
For the initial velocity, we evaluate x = 0 in the given equation:
Therefore, the initial speed is 12 feet per second.
Answer:
The particle's initially velocity is 12.