Answer:
a) One
Explanation:
In a uniform circular motion there must be a force acting to keep it in the circular track. This force can either be centripetal or a centrifugal force.
According to the Newton's first law of motion a particle continues to be in state of rest or in uniform motion until acted upon by an external force.
Here the term uniform motion need to be understood which refers to the uniform velocity of the particle in accordance to the vector laws.
The Brundtland Commission spotted as a matter of urgency, the interconnection between natural resource use and the economy.
<h3>What is the Brundtland Commission?</h3>
The Brundtland Commission was set up with the intention to achieve sustainable development. The tenure of the commission lasted from 1984 to 1987.
The commission identified the pillars of sustainable growth as economic growth, environmental protection, and social equality. The committee opined that environmental problem emanates from poverty in the southern region and reckless consumption of resources in the northern region.
The Brundtland Commission spotted as a matter of urgency, the interconnection between natural resource use and the economy.
Learn more about the Brundtland Commission:brainly.com/question/8285049?
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To solve this problem we will apply the concept related to momentum, which is a physical quantity derived from a vector type that describes the movement of a body in any mechanical theory. In classical mechanics, the amount of movement is defined as the product of body mass and its velocity at a given time. Mathematically is written as,
Here,
m = Mass
V = Velocity
Our values are
Replacing,
Therefore the magnitude of the momentum of a baseball thrown at a speed of 99miles per hour
Answer:22 m/s
Explanation:
Given
launch angle
height of goal
and horizontal distance
Suppose initial speed is
Trajectory of a Projectile is given by
substituting the values we get
So, initial launch speed is
Work is calculated by multiplying the force exerted with the distance covered by the object. The force and the displacement should be parallel. In this item, we have to calculate first the horizontal component of force.
x-component of force = (26 lbs)(cos 30°)
= 22.52 lbs
Multiplying the calculated value by the displacement of 90 ft will give us the final answer of 2026.50 lb.ft.