Bob is pulling a box of his toys of mass 15.0 kg along a rough horizontal surface for a distance of 6.00 m. The tension force in the rope is 58.0 N and the angle is 30° with respect to the horizontal. The frictional force on the box is 18.0 N. Match the answers with questions. (Hint: Clearly draw the force vector and displacement vector for all cases.) What is the angle between the tension force vector and the displacement vector? A. 90° v What is the angle between the friction force vector and the displacement vector? B. none of the given v What is the angle between the normal force vector and the displacement vector? C. 60° D. 150° Е. 0° F. 210° G. 180° Н. 30°

Bob is pulling a box of his toys of mass 15.0 kg along a rough horizontal surface for a distance of 6.00 m. The tension force in the rope is 58.0 N and the angle is 30° with respect to the horizontal. The frictional force on the box is 18.0 N. Match the answers with questions. (Hint: Clearly draw the force vector and displacement vector for all cases.) What is the angle between the tension force vector and the displacement vector? A. 90° v What is the angle between the friction force vector and the displacement vector? B. none of the given v What is the angle between the normal force vector and the displacement vector? C. 60° D. 150° Е. 0° F. 210° G. 180° Н. 30°

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

Chapter1: Introduction And Vectors

Section: Chapter Questions

Problem 67P

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Bob is pulling a box of his toys of mass 15.0 kg along a rough horizontal surface for a distance of 6.00 m. The tension force in the rope is 58.0 N and the angle is 30° with respect to the horizontal. The frictional force on the box is 18.0 N. Match the answers with questions. (Hint: Clearly draw the force vector and displacement vector for all cases.) What is the angle between the tension force vector and the displacement vector? What is the angle between the friction force vector and the displacement vector? What is the angle between the normal force vector and the displacement vector? A. 30° B. 150° C. 90° D. 60° E. none of the given F. 210° G. 0° H. 180°
A student is pulling a crate with a mass of 66.6 kg along a horizontal frictionless floor with a rope that’s inclined at an angle θ = 30.0° above the horizontal as shown. The tension force is measured to be 239 N. What is the magnitude of the normal force on the crate from the floor, in Newtons? Use g = 10.0 m/s2. Your answer needs to have 3 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.
A student's car stalls right in front of a speed bump while she is on her way to physics class. To pull it over the bump, she ties a cable to her bumper and to a nearby tree, and pulls with a force, F, of 81.0 lbs (360 N) at the midpoint in a perpendicular direction.If θ is 11.0°, what is the size of the force pulling the car in lbs
You decide to use a rope to pull your truck out of the mud. If your truck has a mass of 1,400 kg and the coefficient of static friction with the mud is 0.7, what is the maximum pull force the rope must be able to withstand in order to successfully overcome friction and free the truck from the mud? Assume g = 9.8 m/s^2 and answer in N.
Forces with magnitudes of v = 140 newtons and u = 285 newtons act on a hook (see figure). The angle between the two forces is 45°. Find the direction and magnitude of the resultant of these forces. (Hint: Write the vector representing each force in component form, then add the vectors. Round your answers to two decimal places.) newtons magnitude direction y O 45° U SSSSSSS>>x
Two blocks are connected by a (massless) string that runs over a (massless, frictionless) pulley as shown. Assume there is no friction between block 1 and the surface of the incline. If m1 = 3.7 kg and m2 = 6.7 kg, what is the tension in the string? Express your answer in N, to at least one digit after the decimal point.
An object weighing 500kg is to be pulled by a man by exerting a force P. Force P is inclined at an angle of 25 deg. measured from the positive axis. The object and the floor has a coefficient of friction: static = 0.35 and dynamic = 0.15. What is the magnitude of the velocity vector of the object after 5 seconds when the magnitude of P is equal to 8,000 N? Express your answer in unit of m/s What is the total distance travelled by the object after 5 seconds when the magnitude of P is equal to 8,000 N? Express your answer in unit of m.
Workmen are trying to free an SUV stuck in the mud. To extricate the vehicle, they use three horizontal ropes, producing the force vectors shown in the figure.(Figure 1) Take F1 = 937 N, F2 = 793 N, and F3 = 326 NN. Find the x components of each of the three pulls. Express your answers in newtons separated by commas. Find the y components of each of the three pulls. Express your answers in newtons separated by commas. Use the components to find the magnitude of the resultant of the three pulls. Express your answer in newtons to three significant figures. Use the components to find the direction of the resultant of the three pulls. Express your answer in degrees as the angle counted from +x axis in the counterclockwise direction.
Workmen are trying to free an SUV stuck in the mud. To extricate the vehicle, they use three horizontal ropes, producing the force vectors shown in the figure attached. Take F1 = 913 N, F2 = 688 N, and F3 = 336 N. a) Find the x components of each of the three pulls. Express your answers in newtons separated by commas. b) Find the y components of each of the three pulls. Express your answers in newtons separated by commas. c) Use the components to find the magnitude of the resultant of the three pulls. Express your answer in newtons to three significant figures. d) Use the components to find the direction of the resultant of the three pulls. Express your answer in degrees as the angle counted from +x axis in the counterclockwise direction.
2.0 kg against a vertical wall by exerting 40 N, on it. The coefficients of static and kinetic friction 3. 10 A person holds a book of mass m = a horizontal force, Fext between the book and wall are p, = 0.6 and Hk = 0.4, respectively. The book is stationary. %3D +y Calculate a numerical value for the force (a vector) that the wall exerts on the book. Put your numerical vector answer in component form.
Four forces act on an object, given by å = 30.3 N east, B = 44.3 N north, ċ = 72.7 N west, and D = 92.7 N south. (Assume east and north are directed along the +x-axis and +y-axis, respectively.) %3D (a) What is the magnitude of the net force (in N) on the object? (b) What is the direction of the force? (Enter your answer in degrees counterclockwise from the +x-axis.)
Juan is helping his mother rearrange the living room furniture. Juan pushes on the armchair with a force of 30.0 N directed at an angle of 25.0 degree above a horizontal line while his mother pushes with a force of 60.0 N directed at an angle of 35.1 degree below the same horizontal. What is the direction of the vector sum of these two forces? If the direction is below the horizontal, enter a negative value and if the direction is above the horizontal, enter a positive value.