Flag questionA 12-kg crate rests on a horizontal surface and a boy pushing it with a force that is 30° belowthe horizontal. If the coefficient of static friction is 0,5. the minimum magnitude force heneeds to start the crate moving (in N) is ? g = 10 m/s?a.31b. 50C.72d.97O 1. dO3. a 01-GENERAL PHYSICS (1) (All Sections)My courses / PHY101-GENERAL PHYSICS (1) (All Sections ) / General / Final ExamIf a wheel is turning at a constant angular speed of 3.3 rad/s, the time it takes to complete one revolution is about (in seconds):O 1.90O 10.36O 20.72O 0,95NexFinal Exam (for students who haveJump to

“Since you have asked multiple questions, we will solve the first question for you. If you want any…

A 12-kg crate rests on a horizontal surface and a boy pushing it with a force that is 30° below the horizontal. If the coefficient of static friction is 0.5, the minimum magnitude force he needs to start the crate moving (in N) is ? g = 10 m/s? a. 31 b. 50 C. 72 d. 97

A 12-kg crate rests on a horizontal surface and a boy pushing it with a force that is 30° below the horizontal. If the coefficient of static friction is 0.5, the minimum magnitude force he needs to start the crate moving (in N) is ? g = 10 m/s? a. 31 b. 50 C. 72 d. 97

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter5: Displacement And Force In Two Dimensions

Section5.3: Forces In Two Dimensions

Problem 41SSC

See similar textbooks

Similar questions

A setup similar to the one shown in Figure P5.38 is often used in hospitals to support and apply a horizontal traction force to an injured leg. (a) Determine the force of tension in the rope supporting the leg. (b) What is the traction force exerted to the right on the leg?
A 20.O-g ball hangs from the roof of a freight car by a string. When the freight car begins to move, the string makes an angle of 35.0with the vertical. (a) What is the acceleration of the freight car? (b) What is the tension in the string?
A 7.0-N force parallel to an incline is applied to a 1.0-kg crate. The ramp is tilted at 20 and is frictionless. (a) What Is the acceleration of the crate? (b) If all other conditions are the same but the ramp has a friction force of 1.9 N, what is the acceleration?
A box rests on the back of a truck. The coefficient of static friction between the box and the bed of the truck is 0.800. (a) When the truck accelerates forward, what force accelerates the box? (b) Find the maximum acceleration the truck can have before the box slides.
A block of mass 3m is placed on a frictionless horizontal surface, and a second block of mass m is placed on top of the first block. The surfaces of the blocks are rough. A constant force of magnitude F is applied to the first block as in Figure P4.68. (a) Construct free-body diagrams for each block. (b) Identify the horizontal force that causes the block of mass m to accelerate. (c) Assume that the upper block does not slip on the lower block, and find the acceleration of each block in terms of m and F. Figure P4.68
Common Forces A leg is suspended in a traction system, as shown below (a) Which pulley in the figure is used to calculate the force exerted on the foot? (b) What is the tension In the rope? Here T is the tension, wleg is the weight of the leg, and w is the weight of the load that provides the tension.
A horse is harnessed to a sled having a mass of 236 kg, including supplies. The horse must exert a force exceeding 1 240 N at an angle of 35.0 in order to get the sled moving. Treat the sled as a point particle, (a) Calculate the normal force on the sled when the magnitude of the applied force is 1 240 N. (b) Find the coefficient of static friction between the sled and the ground beneath it. (c) Find the static friction force when the horse is exerting a force of 6.20 102 N on the sled at the same angle.
A person holds a ball in her hand, (a) Identify all the external forces acting on the ball and the Newton's third-law reaction force to each one. (b) If the ball is dropped, what force is exerted on it while it is falling? Identify the reaction force in this case. (Ignore air resistance.)
On an airplanes takeoff, the combined action of the air around the engines and wings of an airplane exerts an 8 000-N force on the plane, directed upward at an angle of 65.0 above the horizontal. The plane rises with constant velocity in the vertical direction while continuing to accelerate in the horizontal direction. (a) What is the weight of the plane? (b) What is its horizontal acceleration?
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.
Review. Three forces acting on an object are given by F1=(2.00i2.00j)N, and F1=(5.00i3.00j)N, and F1=(45.0i)N. The object experiences an acceleration of magnitude 3.75 m/s2. (a) What is the direction of the acceleration? (b) What is the mass of the object? (c) If the object is initially at rest, what is its speed after 10.0 s? (d) What are the velocity components of the object after 10.0 s?
. A person stands on a scale inside an elevator at rest (Figure 2.54). The scale reads 800 N. (a) What is the person's mass? (b) The elevator accelerates upward momentarily at the rate of 2 m/s2. What does the scale read then? (c) The elevator then moves with a steady speed of 5 m/s. What does the scale read now?