The PWC must be slowed to "slow, no wake" speed when the operator is within 50 feet of the swimmer.
"Slow, no wake" speed means the boat is at its slowest needed to keep steerage, reducing or getting rid of waves that comes out as white water trailing the boat.
First of all, we need to convert the final angular velocity from rpm (revolutions per minute) to rad/s. Keeping in mind that
We have
the angular acceleration is given by
where
is the initial velocity (in this case, zero), and
is the time needed to accelerate the drill to its final velocity. Using
, we can calculate
:
Answer:
hola
Explanation:
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See the bullet will have a parabolic path both the components should be solved separately thus the y-axis path will be a free fall as there won't be any velocity vector there
so we get
√2h/g= t
√2*78.4/9.8 = t
thus t= 4sec
it means it would take 4 sec to travel 1500 metres
so 1500/4 = 375 m/s would be velocity !
Answer:
Mass in science, is measured in the metric system using units such as kilogram (about 2.2 pounds)n which are a thousand grams, grams, centigrams (hundredths of grams), and milligrams (thousandths of grams). Mass is different from weight, Weight is a force.
Explanation:
hope that helps