Der Vortrag „Tension: Example“ von Jared Rovny, PhD ist Bestandteil des Kurses „Force“.
A construction worker pulls a 2 kg box by a rope on a frictionless surface. The rope makes an angle of 60 degrees with the direction of motion of the box. The acceleration of the box is 3 m/s². What most nearly approximates the tension in the rope?
A 12 kg mass on a slope attaches to a rope. The rope goes over a pulley at the top and connects to a 20 kg mass. If the slope has an angle of 45º with the horizontal and the masses start from the rest, how far will the 20 kg mass fall in 10 seconds?
A 60 kg circus performer suspends from four wires high above the crowd. The wires make an angle of θ with the ceiling. Which of the following describes the vertical component of the tension force of each wire?
5 Sterne |
|
5 |
4 Sterne |
|
0 |
3 Sterne |
|
0 |
2 Sterne |
|
0 |
1 Stern |
|
0 |