What is the acceleration of the block if the vice holds it in place?What is the minimum normal force each jaw of the vice must exert on the wood block to hold the block in place? A piece of wood with mass m = 7.1 kg is held in a vise sandwiched between two wooden jaws as shown in Figure P4.68. A blow from a hammer drives a nail that exerts a force of 420 N on thewood. The coefficient of static friction between the wood surfaces is 0.71.How many normal forces act on the block?O Two, the vice touches the block on two surfaces.One, the block only touches one other object (the vice).O Zero, the block does not touch the floor.Submit AnswerTries 0/5In what direction is the normal force(s) acting on the block?O Vertically in the downward direction.O Horizontally toward the block away from the vice.There are no normal forces present.Vertically in the upward direction.Horizontally away from the block towards the vice.Submit Answer Tries 0/5How many forces related to static friction are present?One, the vice is the only object touching the block.O Two, the vice has two surfaces in contact with the vice.None,the block does not touch the floor.Submit AnswerTries 0/5In what direction is the static friction force(s) acting on the block?O Vertically in the downward direction.Horizontally toward the block.Vertically in the upward direction.Horizontally away from the block.O There are no static frictional forces present.Submit AnswerTries 0/59:15 PMPe Type here to search10/7/2020PrtScInsertDeleteEscF12FIF3F4F6F8F9F10F1124&Backspace2.34.79.0.CO

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What is the acceleration of the block if the vice holds it in place? What is the minimum normal force each jaw of the vice must exert on the wood block to hold the block in place?

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

Chapter4: The Laws Of Motion

Section: Chapter Questions

Problem 53P: Review. A block of mass m = 2.00 kg is released from rest at h = 0.500 m above the surface of a...

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A 276-kg glider is being pulled by a 1 950-kg jet along a horizontal runway with an acceleration of a = 2.20 m/s2 to the right as in Figure P4.41. Find (a) the thrust provided by the jets engines and (b) the magnitude of the tension in the cable connecting the jet and glider. Figure P4.41
Figure P4.26 shows loads hanging from the ceiling of an elevator that is moving at constant velocity. Find the tension in each of the three strands of cord supporting each load. Figure P4.26
An object of mass m1 = 5.00 kg placed on a frictionless, horizontal table is connected to a string that passes over a pulley and then is fastened to a hanging object of mass m2 = 9.00 kg as shown in Figure P4.28. (a) Draw free-body diagrams of both objects. Find (b) the magnitude of the acceleration of the objects and (c) the tension in the string. Figure P4.28
Two blocks of mass 3.50 kg and 8.00 kg are connected by a massless string that passes over a frictionless pulley (Fig. P4.47). The inclines are frictionless. Find (a) the magnitude of the acceleration of each block and (b) the tension in the string. Figure P4.47
Two blocks, each of mass m, are hung from the ceiling of an elevator as in Figure P4.33. The elevator has an upward acceleration a. The strings have negligible mass. (a) Find the tensions T1 and T2 in the upper and lower strings in terms of m, a, and g. (b) Compare the two tensions and determine which string would break first if a is made sufficiently large. (c) What are the tensions if the cable supporting the elevator breaks? Figure P4.33 Problems 33 and 34.
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An object of mass M is held in place by an applied force F and a pulley system as shown in Figure P4.43. The pulleys are massless and frictionless. (a) Draw diagrams showing the forces on each pulley. Find (b) the tension in each section of rope, T1, T2, T3, T4, and T5 and (c) the magnitude of F. Figure P4.43 44. Any device that allows you to increase the force you exert is a kind of machine. Some machines, such as the prybar or the inclined plane, are very simple. Some machines do not even look like machines. For example, your car is stuck in the mud and you cant pull hard enough to get it out. You do, however, have a long cable that you connect taut between your front bumper and the trunk of a stout tree. You now pull sideways on the cable at its midpoint, exerting a force f. Each half of the cable is displaced through a small angle from the straight line between the ends of the cable. (a) Deduce an expression for the force acting on the car. (b) Evaluate the cable tension for the case where = 7.00 and f = 100 N.
Three F forces 1 = (2.00î + 2.00ĵ) N, F2 = (−5.00î− 3.00ĵ) N and F3 = (4.50î) N act on a body, initially at rest, producing an acceleration equal to 3 , 60m s 2 ⁄. (a) What is the direction of the acceleration vector in relation to the x-axis> 0? (b) What is the body mass? (c) What is the speed of the body after 10.0s? (d) What are the components of the velocity vector after 10.0s? Answers: (a) θ ≅ 326.3 °; (b) m = 0.500kg; (c) v = 36,0m⁄s and (d) vx = 30,0m⁄s and vy = −20,0m⁄s.
A particle with mass m = 4.20 kg accelerates according to a = (−3.50 + 2.20) m/s2. (a) What is the net force acting on the particle? (Express your answer in vector form.) F =?N (b) What is the magnitude of this force ?N
A crate of mass m = 32 kg rides on the bed of a truck attached by a cord to the back of the cab as in Figure P4. 26. The cord can withstand a maximum tension of 68 N before breaking. Neglecting friction between the crate and truck bed, find the maximum acceleration the truck can have before the cord breaks.
The figure shows the velocity graph of a 60. kg passenger in an elevator. (a) Assuming a coordinate system in which down is positive, is this elevator initially heading up or down? (b)What is this person’s apparent weight at t= 1.0 s. Draw FBD of the passenger at t= 1.0 s. (c)What is this person’s apparent weight at t= 8.0 s. Draw FBD of the passenger at t= 8.0 s.
A particle with mass m = 5.00 kg accelerates according to a = (−2.60 + 2.30) m/s2. (a) What is the net force acting on the particle? (Express your answer in vector form.) F = (b) What is the magnitude of this force? N=