The magnitude of the acceleration of the elevator is 90m/s^2
Due to Newton's Law ∑ Forces in direction of motion is equal to mass
multiplied by the acceleration
We have here two forces 5000 N in direction of motion and the weight of the person in opposite direction of motion
The weight of the person is his mass multiplied by the acceleration of gravity
So ,
W = mg , where m is the mass and g is the acceleration of gravity
m = 50 kg and g = 9.8 m/s²
Substitute these values in the rule above
W = 50 × 9.8 = 490 N
The scale reads 5000 N
F = 5000 N , W = 490 N , m = 50kg
F - W = ma
5000 - 490 = 50 a
4510 = 50 a
Divide both sides by 50
a = 90.2 m/s²
Hence the acceleration is 90m/s^2
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Answer:


Explanation:
<u>Rate of Change</u>
The volume of a cone of radius r and height h is given by

The height is said to be 1/2 of the radius, thus


a) Knowing r=18 feet, the volume is


b) The rate of change of the volume is computed by taking the derivative of both sides respect to the time


Where r' is the given rate of change of the radius: 2 feet/day.
Now we compute


Answer:
200000J
Explanation:
Here the 1000N÷m is given. It is the torque. Now torque is a type of force created when an object turns.so it is a force.
100kg crate is the mass of the object.
2m is the height.
So the equation to measure gravitational pot. Enrg. Is = mass x force x height
So 1000x100x2 gives us 200000J.
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Answer:
B. Metallic bonds are stronger than hydrogen bonds but weaker than ionic bonds.
Explanation:
a p e x , just took the quiz