In Fig E4.4, consider that the trunk has mass M travels at a constant velocity along a frictionless inclined and the angles involved are θi and θs, where θs corresponds to the angle with respect to the direction of motion and θi is the angle of the inclined. What are the simplified expressions for the tension on the rope and the normal force on the trunk in terms of M, g and the angles? the nec4.4 • A man is dragging a trunk up theloading ramp of a mover's truck. Theramp has a slope angle of 20.0°, andthe man pulls upward with a force Fwhose direction makes an angle of 30.0°with the ramp (Fig. E4.4). (a) How large a force F is necessary for thecomponent F parallel to the ramp to be 90.0 N? (b) How large will thecomponent F perpendicular to the ramp be then?75.0°Figure E4.430.020.0

In Fig E4.4, consider that the trunk has mass M travels at a constant velocity along a frictionless inclined and the angles involved are θi and θs, where θs corresponds to the angle with respect to the direction of motion and θi is the angle of the inclined. What are the simplified expressions for the tension on the rope and the normal force on the trunk in terms of M, g and the angles?

In Fig E4.4, consider that the trunk has mass M travels at a constant velocity along a frictionless inclined and the angles involved are θi and θs, where θs corresponds to the angle with respect to the direction of motion and θi is the angle of the inclined. What are the simplified expressions for the tension on the rope and the normal force on the trunk in terms of M, g and the angles?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter5: More Applications Of Newton’s Laws

Section: Chapter Questions

Problem 48P: Why is the following situation impossible? A 1.30-kg toaster is not plugged in. The coefficient of...

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Why is the following situation impossible? A 1.30-kg toaster is not plugged in. The coefficient of static friction between the toaster and a horizontal countertop is 0.350. To make the toaster start moving, you carelessly pull on its electric cord. Unfortunately, the cord has become frayed from your previous similar actions and will break if the tension in the cord exceeds 4.00 N. By pulling on the cord at a particular angle, you successfully start the toaster moving without breaking the cord.
A crate of weight Fg is pushed by a force P on a horizontal floor as shown in Figure P4.83. The coefficient of static friction is s, and P is directed at angle below the horizontal. (a) Show that the minimum value of P that will move the crate is given by P=sFgsec1stan (b) Find the condition on in terms of , for which motion of the crate is impossible for any value of P. Figure P4.83
A car is stuck in the mud. A tow truck pulls on the car with the arrangement shown in Fig. P4.32. The tow cable is under a tension of 2 500 N and pulls downward and to the left on the pin at its upper end. The light pin is held in equilibrium by forces exerted by the two bars A and B. Each bar is a strut; that is, each is a bar whose weight is small compared to the forces it exerts and which exerts forces only through hinge pins at its ends. Each strut exerts a force directed parallel to its length. Determine the force of tension or compression in each strut. Proceed as follows. Make a guess as to which way (pushing or pulling) each force acts on the top pin. Draw a free-body diagram of the pin. Use the condition for equilibrium of the pin to translate the free-body diagram into equations. From the equations calculate the forces exerted by struts A and B. If you obtain a positive answer, you correctly guessed the direction of the force. A negative answer means that the direction should be reversed, but the absolute value correctly gives the magnitude of the force. If a strut pulls on a pin, it is in tension. If it pushes, the strut is in compression. Identify whether each strut is in tension or in compression.
QUESTION 3 Problem In the end of the Chapter 4 Problem 4.4 of your book consider that the trunk has mass M travels at a constant velocity along a frictionless inclined and the angles involved are 0j and 05, where 0s corresponds to the angle with respect to the direction of motion and 0j is the angle of the inclined. What are the simplified expressions for the tension on the rope and the normal force on the trunk in terms of M, g and the angles? Answer T = (0;)/ n = (Mg)( (6) Os +
4.4 • A man is dragging a trunk up the loading ramp of a mover's truck. The ramp has a slope angle of 20.0°, and the man pulls upward with a force F whose direction makes an angle of 30.0° with the ramp (Fig. E4.4). (a) How large a force F is necessary for the component F, parallel to the ramp to be 90.0 N? (b) How large will the component F, perpendicular to the ramp be then? Figure E4.4 30,0 |20.0° Problem In the end of the Chapter 4 Problem 4.4 of your book consider that the trunk has mass M travels at a constant velocity along a frictionless inclined and the angles involved are 0j and 8s, where 0, corresponds to the angle with respect to the direction of motion and 6j is the angle of the inclined. What are the simplified expressions for the tension on the rope and the normal force on the trunk in terms of M, g and the angles? Answer T = (8)/ n = (Mg)( (6) Os +
Question 1 2 pts Which direction does the normal force on the point in? M Ms Mx O Impossible to determine Directly upward Angle 0 from the horizontal Angle 0 from the vertical
A 40 kg box initially at rest is pushed 20.0 m along a rough, horizontal floor with a constant applied horizontal force of 170.0N making an agle e=36.9° with the horizontal as shown in the Figure below. If the coefficient of friction between the box and the floor is l =0.3. The final velocity v of the box is %3D a) 8.83 m/s b) 7.00 m/s c) 13.93 m/s d) 4.28 m/s e) None Ax
The tension in a violin string is2.7 N. When pushed down against the neck of the violin, the stringmakes an angle of 4.1° with the horizontal. (a) With what forcemust you push down on the string to bring it into contact with theneck? (b) If the angle were less than 4.1°, would the required forcebe greater than, less than, or the same as in part (a)? Explain.
when sara is running, the maximum vertical ground reaction force under her foot is 1200 N. At that moment, the friction force is 200 N. What is the magnitude of the resultant of these two forces?
Calculate the tension (in N) in a vertical strand of spiderweb if a spider of mass 5.00 x 10¯5 kg hangs motionless on it. Calculate the tension (in N) in a horizontal strand of spiderweb if the same spider sits motionless in the middle of it much like the tightrope walker 5.0° 5.00 T. TR y 4 T.I TR The strand sags at an angle of 11.0° below the horizontal. Compare this with the tension in the vertical strand (find their ratio). tension in horizontal strand tension in vertical strand
Chapter 04, Problem 072 7 Your answer is partially correct. Try again. A fisherman is fishing from a bridge and is using a "30.0-N test line." In other words, the line will sustain a maximum force of 30.0 N without breaking. What is the weight of the heaviest fish that can be pulled up vertically, when the line is reeled in (a) at constant speed and (b) with an acceleration whose magnitude is 2.16 m/s?? (a) NumberT3.06 Units (b) Number24.60 UnitsTN
The upper leg muscle (quadriceps) exerts a force of 1350 N, which is carried by a tendon over the kneecap (the patella) at the angles shown in Figure 5.43. Find the magnitude and direction of the force exerted by the kneecap on the upper leg bone (the femur). (counter-clockwise from an axis directed to the left) X N X Figure 5.43 Fo