C. has to be right, also its the only one that makes sense.
Hope this helps!
<span>Size = more material is in contact with the other material, therefore more area experiencing friction</span>
Answer:
its inertia.
Inertia is the tendency of an object to continue in the state of rest or of uniform motion
a. Angle between the cable and the horizontal in order to pull the greatest possible amount of sand is θ= 19.29° b. weight of sand and box is M= 34 kgs where coefficient of static friction is 0.35.
An object experiences static friction when a force is applied to it; as a result, the object resists the applied force and stays at rest until static friction is removed. In kinetic friction, the frictional force opposes an object's motion. While surfaces at rest with respect to one another experience static friction. Static friction is defined as the difference between zero and the minimum force required to initiate motion. The minimum force needed to initiate motion or dissipate static friction is always greater than the coefficient of friction, which is the ratio between the force preventing motion between two surfaces in contact and the normal force holding them together. The Greek letter mu () is commonly used to represent it.
Learn more about static friction here:
brainly.com/question/13000653
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Answer:
v = 1.22 m/s
Explanation:
Given that, Mass of the object, m = 0.4 kg
Spring constant of the spring, k = 80 N/m
The starting displacement from equilibrium is 0.10 m, or the amplitude, A = 0.1 m
To find, The speed of the mass when moving through the equilibrium point.
Displacement in the mass, y = 0.05
Solution, Let is the angular frequency of the mass. It can be calculated as :
When the mass displaces from some position, the speed of the mass is given by : v = 1.22 m/s
So, the speed of the mass when moving through the equilibrium point is 1.22 m/s.
