9 80T NewtonsFigure 1Figure 1 shows a packing case of mass 6.8 kg being pulled up a smoothslope which is inclined at 80° to the horizontal whereThetan 8 =815packing case is being pulled by a light inextensible rope which is parallel tothe slope, and the tension in the rope is T Newtons.The case starts from rest and accelerates at 1.75 ms².(a) Find the value of T.After the case has travelled 56 metres the rope breaks.(b) Find the speed of the case 2 seconds after the rope breaks, stating clearly ifit is moving up or down the slope.

The mass of the packing case, m=6.8 kg The relation given to find the angle θ with respect to the…

8° T Newtons Figure 1 8 tan 8 = The Figure 1 shows a packing case of mass 6.8 kg being pulled up a smooth slope which is inclined at 0° to the horizontal where packing case is being pulled by a light inextensible rope which is parallel to the slope, and the tension in the rope is T Newtons. 15 The case starts from rest and accelerates at 1.75 ms². (a) Find the value of T. . After the case has travelled 56 metres the rope breaks. (b) Find the speed of the case 2 seconds after the rope breaks, stating clearly if it is moving up or down the slope.

8° T Newtons Figure 1 8 tan 8 = The Figure 1 shows a packing case of mass 6.8 kg being pulled up a smooth slope which is inclined at 0° to the horizontal where packing case is being pulled by a light inextensible rope which is parallel to the slope, and the tension in the rope is T Newtons. 15 The case starts from rest and accelerates at 1.75 ms². (a) Find the value of T. . After the case has travelled 56 metres the rope breaks. (b) Find the speed of the case 2 seconds after the rope breaks, stating clearly if it is moving up or down the slope.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Spring Potential Energy

The potential energy is the energy possessed by a body by virtue of its position or the energy held by the object due to its position relative to other objects, its force like stresses, charge, and other factors affecting the particles of the body. The potential energy is the measure of the net work done by or on the body. The spring potential energy is the potential energy stored due to the deformation of an elastic spring and this elasticity is due to the stretched spring. The elasticity is the ability of a solid-state matter to come back to its equilibrium position or original position after any kind of external force is acted on it. It is also known as Elastic potential energy. The potential energy here is caused due to the displacement of the spring from its equilibrium position to another position and this potential energy is equal to the net work done due to the stretching of the spring. It also resembles the same mechanics of the oscillation of a simple pendulum, where due to the external force, the object moves from its equilibrium position to its maximum ends and the periodic motion continues till it comes back to the equilibrium position to rest. 

Question

80
T Newtons
Figure 1
Figure 1 shows a packing case of mass 6.8 kg being pulled up a smooth
slope which is inclined at 80° to the horizontal where
The
tan 8 =
8
15
packing case is being pulled by a light inextensible rope which is parallel to
the slope, and the tension in the rope is T Newtons.
The case starts from rest and accelerates at 1.75 ms².
(a) Find the value of T.
After the case has travelled 56 metres the rope breaks.
(b) Find the speed of the case 2 seconds after the rope breaks, stating clearly if
it is moving up or down the slope.

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Step 2: Finding the tension of the rope.

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Step 3: b) Finding the final velocity of the rope, 2s after the breakage of rope.

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