A 4.0-kilogram mass is moving at 3.0 meters per second toward the right and a 6.0-kilogram mass is
moving at 2.0 meters per second toward the left on a horizontal frictionless table. If the two masses collide
and remain together after the collision, their final momentum is
Answers: 3
Physics, 22.06.2019 00:30, Solany6426
Part f - example: finding two forces (part i) two dimensional dynamics often involves solving for two unknown quantities in two separate equations describing the total force. the block in (figure 1) has a mass m=10kg and is being pulled by a force f on a table with coefficient of static friction îľs=0.3. four forces act on it: the applied force f (directed î¸=30â above the horizontal). the force of gravity fg=mg (directly down, where g=9.8m/s2). the normal force n (directly up). the force of static friction fs (directly left, opposing any potential motion). if we want to find the size of the force necessary to just barely overcome static friction (in which case fs=îľsn), we use the condition that the sum of the forces in both directions must be 0. using some basic trigonometry, we can write this condition out for the forces in both the horizontal and vertical directions, respectively, as: fcosî¸â’îľsn=0 fsinî¸+nâ’mg=0 in order to find the magnitude of force f, we have to solve a system of two equations with both f and the normal force n unknown. use the methods we have learned to find an expression for f in terms of m, g, î¸, and îľs (no n).
Answers: 2
Physics, 23.06.2019 02:00, Karate5650
Which of the following is the largest disadvantage of about half of the electricity in the united states comes from burning
Answers: 2
A 4.0-kilogram mass is moving at 3.0 meters per second toward the right and a 6.0-kilogram mass is...
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