The easiest Way to Solve a Physics Problem - The Beginners Guide to Physics
Δημοσιεύθηκε στις 8 Ιουν 2013
This is a 7 step method to solving
any physics problem and a great lesson on how to approach any physics
problem. The video is lengthy but well worth the watch, it will explain
in detail how to solve any physics problem with relative ease. The
problem at hand is a projectile motion problem, you can find the
question at the bottom of the description. Please leave any comments
that you have for change, I am only trying to make quality videos for
beginning students.
1. Read the problem and extract known variables, put these in a neat list, i.e. v = 10m/s, g = 9.81m/s^2, t = 3.0s
2.
Analyze the problem, locate all the unknown variables related to the
problem, and make a neat list. Meaning: what kind of problem is this,
angular momentum, projectile motion, et cetera.
3. Locate all the formulas in relation to the problem, put these into a neat list.
4. This is crucial; reread the problem at least 3-5 times!
5. Make a neat and well-labeled free body diagram explaining what you have read.
6.
Begin to locate the solution for the unknowns, make sure to use the
free body diagram to determine direction and proper angle.
7. Repeat if necessary.
A
man stands on the roof of a 15.0-m-tall building and throws a rock with
a velocity of magnitude 30.0 m/s at an angle of 33.0° above the
horizontal. You can ignore air resistance. Calculate (a) the maximum
height above the roof reached by the rock; (b) the magnitude of the
velocity of the rock just before it strikes the ground; and (c) the
horizontal range from the base of the building to the point where the
rock strikes the ground.
Detailed explanation of projectile motion dealing with two dimensional kinematics.
any physics problem and a great lesson on how to approach any physics
problem. The video is lengthy but well worth the watch, it will explain
in detail how to solve any physics problem with relative ease. The
problem at hand is a projectile motion problem, you can find the
question at the bottom of the description. Please leave any comments
that you have for change, I am only trying to make quality videos for
beginning students.
1. Read the problem and extract known variables, put these in a neat list, i.e. v = 10m/s, g = 9.81m/s^2, t = 3.0s
2.
Analyze the problem, locate all the unknown variables related to the
problem, and make a neat list. Meaning: what kind of problem is this,
angular momentum, projectile motion, et cetera.
3. Locate all the formulas in relation to the problem, put these into a neat list.
4. This is crucial; reread the problem at least 3-5 times!
5. Make a neat and well-labeled free body diagram explaining what you have read.
6.
Begin to locate the solution for the unknowns, make sure to use the
free body diagram to determine direction and proper angle.
7. Repeat if necessary.
A
man stands on the roof of a 15.0-m-tall building and throws a rock with
a velocity of magnitude 30.0 m/s at an angle of 33.0° above the
horizontal. You can ignore air resistance. Calculate (a) the maximum
height above the roof reached by the rock; (b) the magnitude of the
velocity of the rock just before it strikes the ground; and (c) the
horizontal range from the base of the building to the point where the
rock strikes the ground.
Detailed explanation of projectile motion dealing with two dimensional kinematics.
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