Answer:
The radius of the loop is 20.66 km
Explanation:
let the radius of the loop be r
mass of airplane is m
At the top, the pilot experiences two radial forces, which are
1) Gravitational force is mg
2) Centrifugal forces mv²/r out of the center
When the pilot experiences no weight,
then, mg = mv²/r
r = v² / g
= 450² / 9.8
= 20.66 x 10³3
= 20.66 km
Answer:
Fundamental unit is any unit that is not dependent on other units and other units can be derived from them
Explanation:
Units such as Kilogram, Mass and Time are said to be fundamental units because they are independent.
Differences between Mass and weight;
1. Mass is the measure of the amount of matter in a body while weight is a measure of how the force of gravity acts upon that mass.
2. Mass is a scalar quantity while weight is a vector quantity
1. We can use the principle of moments to ensure that there is no net moment, that is, m*g*d = M*g*l, where m is the mass of the weight, d is the distance of the weight to the pivot, M is the mass of the counterweight, l is the distance of the counterweight from pivot, and g is the gravitational constant.
2. A question that could be asked is what kind of weights is the engineer expecting the crane to lift, that would determine the counterweights used.
Forces are added. Acceleration would be the thing decreasing if the airplane is in the air and flying forward, which I am assuming as no context is given.
Even if the airplane was stationary an the ground forces would still be added. Acceleration is the consequence of force, not the same thing.