The speed of the object is the rate where it changes position relative to the frame of reference. The speed equates to a stipulated speed and motion direction of the item, and the further calculation can be defined as follows:
Given:
To find:
Find the eastward component=?
Solution:
When the angle is north-east, the angle is the east measured
Using formula:
So, the final answer is "45.3155 m/s".
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Question 1:
Answer:
The moment of inertia of Alex's rolling hoop is 0.197
Explanation:
<u>Given</u>:
Mass of the hoop = 0.350 g
Radius of the hoop = 75.0 cm
<u>To Find:</u>
The moment of inertia of Alex's rolling hoop = ?
<u>Solution</u><u>:</u>
The moment of inertia =
where
m is the mass
r is the radius
Converting cm to m, we get
75.0 cm = 0.75 m
Now substituting the values,
=> moment of inertia =
=> moment of inertia =
=> moment of inertia =
Question 2:
Answer:
The combined angular momentum of the masses is 1.76
If she pulls her arms in to 0.12 m, her new linear speed is
Explanation:
Given:
Mass = 2.0 kg
Radius = 0.8 m
Velocity = 1.2 m/s
a.The combined angular momentum of the masses:
Substituting the values,
L= 1.76
b. If she pulls her arms in to 0.12 m, what is her new linear speed