The maximum speed is 0.55 m/s
Explanation:
For an object in uniform circular motion, the force of friction between the object and the ground provides the centripetal force required to keep the body in motion. Therefore we can write:
where the term on the left is the frictional force and the term on the right is the centripetal force, and where
is the coefficient of static friction
m is the mass of the body
g is the gravitational acceleration
v is the speed of the body
r is the radius of the circular path
In this problem, we have:
r = 0.102 m
Substituting and re-arranging, we find the maximum speed v at which the salt shaker can rotate:
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The average velocity of the object represented by the distance time graph is 
- The velocity of an object is the change in the distance moved by an object with time.
- This could also be related to the rate of change or slope of the graph.
- Average velocity =
- Average velocity =
Therefore, the average velocity of the object is
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The formula for speed id speed is equal to distance/time
so to 5.0/0.01=500m/s.
Answer: A) O N
Explanation:
An object in motion will maintain its state of motion. The presence of an unbalanced force changes the velocity of the object.
Answer:
The wavelength will be 33.9 cm
Explanation:
Given;
frequency of the wave, F = 1200 Hz
Tension on the wire, T = 800 N
wavelength, λ = 39.1 cm
Where;
F is the frequency of the wave
T is tension on the string
μ is mass per unit length of the string
λ is wavelength
when the tension is decreased to 600 N, that is T₂ = 600 N
Therefore, the wavelength will be 33.9 cm
