Quiz 10
... Since the system is initially at rest, the initial elongation of the spring is given by -kL-mgsinθ+T = 0 (Equilibrium condition for the block.) Mg-T = 0 (Equilibrium condition for the hanging object.) Mg-mgsinθ-kL = 0 (The sum of the two equation) ⇒ L = (Mg-mgsinθ)/k = (3-2sin30˚)×9.8/400 = 0.0490 m ...
... Since the system is initially at rest, the initial elongation of the spring is given by -kL-mgsinθ+T = 0 (Equilibrium condition for the block.) Mg-T = 0 (Equilibrium condition for the hanging object.) Mg-mgsinθ-kL = 0 (The sum of the two equation) ⇒ L = (Mg-mgsinθ)/k = (3-2sin30˚)×9.8/400 = 0.0490 m ...
PSE 3e Chapter 8 EOC Conceptual Questions Larry Smith
... points. In order to speed up, there must be a nonzero acceleration parallel to the track. In order to move in a circle, there must be a nonzero centripetal acceleration. Since both of these are required, the net force points somewhere between the forward direction (parallel to the track) and the cen ...
... points. In order to speed up, there must be a nonzero acceleration parallel to the track. In order to move in a circle, there must be a nonzero centripetal acceleration. Since both of these are required, the net force points somewhere between the forward direction (parallel to the track) and the cen ...
Chapter 4 2D Kinematics
... Direction of the force of kinetic friction: Kinetic friction fk acts to oppose the sliding motion at the point of contact between the surfaces. Magnitude of the force of kinetic friction: In general, the force of kinetic friction is found to be proportional to the magnitude of the normal force, N, o ...
... Direction of the force of kinetic friction: Kinetic friction fk acts to oppose the sliding motion at the point of contact between the surfaces. Magnitude of the force of kinetic friction: In general, the force of kinetic friction is found to be proportional to the magnitude of the normal force, N, o ...
![Multiple choice questions [60 points]](http://s1.studyres.com/store/data/002785313_1-b2734444f348f25d9b46ea15f542520b-300x300.png)
Explanation of Newton´s laws with simple and accessible
... If we pull the lower part of the thread brusquely, this will break; but if we slowly pull the same thread, gradually increasing the force, the upper part of the thread (in relation to the load) will break. For the upper part of the thread to break, it must go through complementary stretching. This m ...
... If we pull the lower part of the thread brusquely, this will break; but if we slowly pull the same thread, gradually increasing the force, the upper part of the thread (in relation to the load) will break. For the upper part of the thread to break, it must go through complementary stretching. This m ...
Dynamic model of a bicycle Introduction
... O1: Rear wheel O2: Rider’s torso (about the seat) O3: Stem/headset (for steering) O4: Front wheel ...
... O1: Rear wheel O2: Rider’s torso (about the seat) O3: Stem/headset (for steering) O4: Front wheel ...
marking scheme - The Physics Teacher
... Define (i) angular velocity, (ii) centripetal force. ( 12 ) (i) ω = θ/t // angle traced out / angular displacement // per unit time / sec ...
... Define (i) angular velocity, (ii) centripetal force. ( 12 ) (i) ω = θ/t // angle traced out / angular displacement // per unit time / sec ...
Solutions for class #9 from Yosunism website Problem 55:
... The voltage changes from positive to negative in regions where the change in flux is slowing down, goes to 0, then speeds up again. Thus, choice (C) is out. The change in flux is constantly increasing as the loop spins into the field, and it is constantly decreasing as it spins out of the field. Thi ...
... The voltage changes from positive to negative in regions where the change in flux is slowing down, goes to 0, then speeds up again. Thus, choice (C) is out. The change in flux is constantly increasing as the loop spins into the field, and it is constantly decreasing as it spins out of the field. Thi ...
Chapter 5 PPT - Cobb Learning
... object by changing its speed, direction, or both. • All matter has mass, and gravity is a result of mass. Therefore, all matter is affected by gravity and all objects experience an attraction toward all other objects. • The mass of most objects is too small to cause a force large enough to move obje ...
... object by changing its speed, direction, or both. • All matter has mass, and gravity is a result of mass. Therefore, all matter is affected by gravity and all objects experience an attraction toward all other objects. • The mass of most objects is too small to cause a force large enough to move obje ...
9.1
... The velocity of a moving object is modeled by a vector whose direction is the direction of motion and whose magnitude is the speed. Figure 16 shows some vectors u, representing the velocity of wind flowing in the direction N 30 E, and a vector v, representing the velocity of an airplane flying thro ...
... The velocity of a moving object is modeled by a vector whose direction is the direction of motion and whose magnitude is the speed. Figure 16 shows some vectors u, representing the velocity of wind flowing in the direction N 30 E, and a vector v, representing the velocity of an airplane flying thro ...
