QUESTION 3 roblem 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 ne angles involved are 0j and 0s, where 0s corresponds to the angle with respect to the direction of motion and 0j is the angle of the inclined. What are ne simplified expressions for the tension on the rope and the normal force on the trunk in terms of M, g and the angles? nswer T= (0;)/ n= (Mg)( (6) O5 +

QUESTION 3 roblem 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 ne angles involved are 0j and 0s, where 0s corresponds to the angle with respect to the direction of motion and 0j is the angle of the inclined. What are ne simplified expressions for the tension on the rope and the normal force on the trunk in terms of M, g and the angles? nswer T= (0;)/ n= (Mg)( (6) O5 +

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter4: Dynamics: Force And Newton's Laws Of Motion

Section: Chapter Questions

Problem 24PE: The wheels of a midsize car exert a force of 2100 N backward on the road to accelerate the car in...

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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 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? Answer T = _____ g _____(θi)/_____ n = (Mg)( _____ (θi) _____ θs + _____ )
Imagine trying to push a heavy sofa across the room. At first you have difficulty getting the sofa to budge, but once it starts to move your task becomes easier. a. Does the sofa accelerate for a moment after you get it moving? b. Use what you now know about static and kinetic friction to explain what is going on. Why wont the sofa move at first? Why do you have to apply a stronger and stronger force to get it to move? Why is the force you must apply to keep the sofa moving less than the force you applied just at the instant motion began?
A force is a quantity that is ___ of producing motion or a change in motion. (3.1)
The wheels of a midsize car exert a force of 2100 N backward on the road to accelerate the car in the forward direction. If the force of friction including air resistance is 250 N and the acceleration of the car is 1.80 m/s2, what is the mass of the car plus its occupants? Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton's laws of motion. For this situation, draw a free-body diagram and write the net force equation.
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 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? T = ___ g ____ (θi)/ _____ n = (Mg)( _____ (θi) _____ θs + _____ )
Imagine a person kayaking across a lake . Can you name a force pair at work? Also explain which one of Newton's Laws this describes.
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 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?
An adult 68 kg cheetah can accelerate from rest to 20.1 m/s (45 mph) in 2.0 s. Assuming constant acceleration, (a) find the net external force causing this acceleration. (b) Where does the force come from? That is, what exerts the force on the cheetah? [#9 under Chapter 4 Problems on Mass and Newton’s Second Law]
Thieves attempt to transport a 1000 kg safe up a frictionless ramp with inclination θ as shown in Fig. 2. What is the tension in the rope, as a function of θ and g, if the safe moves up the ramp (a) with a constant velocity of 1.0 m/s and (b) with an acceleration of 1.0 m/s2 upward? (c) Does your answer make sense for the limits of θ → 0 and θ → 90°?
Mr. Vollmayer pulls his children (21kg and 24kg) on a sled (5kg). The force of the friction on the sled is 60N and he pulls upward at a 25 degree angle relative the the ground. How hard must he pull to move the sled at a constant velocity? what is the normal force acting on the sled?
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