A supersonic jet is at an altitude of 14 kilometers flying at 1,500 kilometers per hour toward the east. At this velocity, how f
1 answer:
Answer:
The jet will fly 2400 km.
Explanation:
Given the velocity of the jet flying toward the east is 1,500 kmph toward the east.
We need to find the distance covered in 1.6 hours.
In our problem we are given speed and time, we can easily determine the distance using the following formula.
So, the supersonic jet will travel 2400 km in 1.6 hours toward the east from its starting point.
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The forces are:
, down
, down
, up
Explanation:
We start by finding the force of gravity on the elephant, , which is given by
(downward)
where
m = 10,000 kg is the mass of the elephant
is the acceleration of gravity
Substituting,
Now we know that the net acceleration of the elephant is
downward
We can now use Newton's second law:
where is the net force on the elephant. Substituting, we find
and it also acts downward, since it has the same direction as the acceleration.
Finally, we can write the net force on the elephant as
where the force of gravity acts downward, while the air resistance ( acts upward. The net force also acts downward, so it has the same sign of gravity.
Substituting:
And solving, we find the air resistance:
(upward)
Learn more about forces and Newton laws of motion:
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