Answer:
5.61s
Explanation:
And we need to find out the time taken by the ball to reach the ground .
- The initial velocity of the ball will be 0 since it is dropped .
Here we can use the First equation of motion , namely ;
where the symbols have their usual meaning . Now substituting the respective values , we have,
A barometer is a scientific instrument used to measure atmospheric pressure, also called barometric pressure. The atmosphere is the layers of air wrapped around the Earth. That air has a weight and presses against everything it touches as gravity pulls it to Earth. Barometers measure this pressure.
Newton's second law of motion can be used to calculate weight.
The full complement of satellites comprising a satellite navigation system, such as GPS, refers to Constellation.
<h3>What is GPS?</h3>
This is referred to as global positioning system and it broadcasts highly accurate navigation pulses to users on or near Earth.
The full complement of the satellites comprising a satellite navigation system, such as GPS or GNSS is referred to as Constellation which makes option A the most appropriate choice.
Read more about GPS here brainly.com/question/9795929
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as we know that the velocity vectors are at right angles
magnitude = ?
hypotenuse of a right
triangle.
v^2 = 90^2 + 4^2
v^2 = 8116
Taking the square root of both sides here we get,
v = 90.1 m/s
hope it helps
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