Schematization Draw a diagram of the object that interests us. Draw your x and y axes. Draw and name each force experienced by the object of interest and identify its displacement. Modelization Design a model to calculate the modulus of the block's final velocity as a function of known parameters, using the notions of work and energy. Then test your model with the following values: Block mass: 7 kg Initial Velocity: vi = (3.6 i ) m/s Displacement: s = (4.4 i) m Tension in the string: T = (17.2 i ) N
Simple harmonic motion
Simple harmonic motion is a type of periodic motion in which an object undergoes oscillatory motion. The restoring force exerted by the object exhibiting SHM is proportional to the displacement from the equilibrium position. The force is directed towards the mean position. We see many examples of SHM around us, common ones are the motion of a pendulum, spring and vibration of strings in musical instruments, and so on.
Simple Pendulum
A simple pendulum comprises a heavy mass (called bob) attached to one end of the weightless and flexible string.
Oscillation
In Physics, oscillation means a repetitive motion that happens in a variation with respect to time. There is usually a central value, where the object would be at rest. Additionally, there are two or more positions between which the repetitive motion takes place. In mathematics, oscillations can also be described as vibrations. The most common examples of oscillation that is seen in daily lives include the alternating current (AC) or the motion of a moving pendulum.
Practice with work
context
You want to practice using the notions of work and energy in physics situations. You imagine a block pulled on a horizontal surface (along an x-axis), without friction, for which you are looking for the final velocity.
Known information:
the mass of the block;
the tension in the rope;
the initial speed of the block;
move.
Schematization
Draw a diagram of the object that interests us. Draw your x and y axes. Draw and name each force experienced by the object of interest and identify its displacement.
Modelization
Design a model to calculate the modulus of the block's final velocity as a function of known parameters, using the notions of work and energy.
Then test your model with the following values:
Block mass: 7 kg
Initial Velocity: vi = (3.6 i ) m/s
Displacement: s = (4.4 i) m
Tension in the string: T = (17.2 i ) N
Step by step
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