College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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- A 12 kg mass hangs from a rope. A force is applied to the rope that the mass is accelerated upward at 2.6 m/s . What is the tension in the rope? Use g = 9.8 m/s ^ 2arrow_forwardFigure shows the velocity graph of a 65 kg student in an elevator. What is the student's apparent weight (magnitude only) at t = 7.0 s, in Newtons? Use g = 10.0 m/s². (Hint: What is the net force?) Your answer needs to have 2 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. Vy (m/s) 8- 4- (s) 10 4. 6. 8.arrow_forwardA man is attempting to lift a crate using a two part pulley system as shown in the image. The crate has mass m2 = 53 kg, and the man has m1 = 75 kg. He pulls downward on the rope with a force of magnitude F = 659 N. The pulleys are massless and frictionless. 1.) what is the magnitude of the tension force T in newtons? 2.) what is the blocks acceleration in m/s^2?arrow_forward
- An elevator car has two equal masses attached to the ceiling as shown. (Assume m = 4.10 kg.) T m T2 m (a) The elevator ascends with an acceleration of magnitude 1.70 m/s2. What are the tensions in the two strings? (Enter your answers in N.) T, = 108.24 Draw free-body diagrams for each mass. What forces act on each mass? What are the directions of the forces due to each rope on the upper mass? How are the forces that the lower rope exerts on the two masses related? Apply Newton's second law to each mass. You might find it easier to solve for T, first, then use your result when solving for T,. N T2 = 54.12 Draw free-body diagrams for each mass. What forces act on each mass? What are the directions of the forces due to each rope on the upper mass? How are the forces that the lower rope exerts on the two masses related? Apply Newton's second law to each mass. You might find it easier to solve for T, first, then use your result when solving for T,. N (b) The maximum tension the strings can…arrow_forwardThe two forces F⃗ 1 and F⃗ 2 shown in (Figure 1) act on a 29.0-kg object on a frictionless tabletop. Suppose that F1 F_1 = 10.0 N, and F2 F_2 = 16.6 N. Determine the magnitude of the net force on the object for the diagram (a) in the figure. Express your answer to three significant figures and include the appropriate units. FRa= _______________ _____________ Determine the angle between the positive xxaxis and the net force F⃗ RaF→Ra on the object for the diagram (a), measured counterclockwise. Express your answer using three significant figures. θa = ________________ Determine the magnitude of the acceleration of the object for the diagram (a). Express your answer to three significant figures and include the appropriate units. aa= ______________ ________________ Determine the magnitude of the net force on the object for the diagram (b) in the figure. Express your answer to three significant figures and include the…arrow_forwardA warehouse worker pushes a crate along the floor, as shown in the figure (Figure 1), by a force of 19 NN that points downward at an angle of 45 degrees below the horizontal. Find the horizontal component of the push. Your answer should be positive if the force is to the right, negative if the force is to the left. Express your answer in newtons. Find the vertical component of the push. Your answer should be positive if the force is upward, negative if the force is downward. Express your answer in newtons.arrow_forward
- Please include a diagram.arrow_forwardConsider the baby being weighed in the figure. f = 51 Nm = 0.495 kg What is the mass (in kg) of the child and basket if a scale reading of 51 N is observed? What is the tension T1 in the cord attaching the baby to the scale? What is the tension T2 in the cord attaching the scale to the ceiling, if the scale has a mass of 0.495 kg?arrow_forwardWhat is the frictional force acting at A? answer in N using 3 significant digits. What is the frictional force acting at B? answer in N using 3 significant digits.arrow_forward
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