Concept explainers
A fisherman has caught a very large, 5.0 kg fish from a dock that is 2.0 m above the water. He is using lightweight fishing line that will break under a tension of 54 N or more. He is eager to get the fish to the dock in the shortest possible time. If the fish is at rest at the water’s surface, what’s the least amount of time in which the fisherman can raise the fish to the dock without losing it?
Want to see the full answer?
Check out a sample textbook solutionChapter 5 Solutions
College Physics: A Strategic Approach , Books a la Carte Plus Mastering Physics with Pearson eText -- Access Card Package (4th Edition)
Additional Science Textbook Solutions
The Cosmic Perspective (8th Edition)
Lecture- Tutorials for Introductory Astronomy
University Physics with Modern Physics (14th Edition)
College Physics (10th Edition)
Sears And Zemansky's University Physics With Modern Physics
Essential University Physics (3rd Edition)
- A rocket is launched vertically from the Earth, and the thrust (pushing force) from the engines is directed upward, and has a magnitude of 5.00 x 106N. The mass of the rocket is initially 2.00 x 105 kg.What is the initial acceleration of the rocket, assuming you can neglect air resistance? a 50.0 m/s2 b 15.2 m/s2 c 7.6 m/s2 d 25.0 m/s2arrow_forwardA person is using a rope to lower a 5.0-N bucket into a well with a constant speed of 2.0 m/s. What is the magnitude of the force exerted by the rope on the bucket? 5.0 N 0.00 N 49 N 10 N 2.0 Narrow_forwardA 1200 kg car goes from 10 m/s to 18 m/s in 5 s. what is the force acting on it?Required to answer. Single choice. a. 1600 kg m/s^2 b. 1920 kg m/s^2 c. 2000 kg m/s^2 d. 2400 kg m/s^2arrow_forward
- A gymnast with a weight of 300 N is suspended by a single vertical rope, the tension in the rope is___? a. 900 N b. 600 N c. 300 N d. 150 Narrow_forwardTwo water-skiers, with masses of 48 kg and 61 kg, are preparing to be towed behind the same boat. When the boat accelerates, the rope the skiers hold onto accelerates with it and exerts a net force of 290 N on the skiers. At what rate will the skiers accelerate? a. 10.8 m/s2 b. 2.7 m/s2 c. 6.0 m/s2 and 4.8 m/s2 d. 5.3 m/s2arrow_forwardA 64 kg baseball player jumps into the air throws a 151 g baseball directly eastward with a force of 8.4 N. What is the acceleration of the player? 0.13 m/s2 to the east 0.13 m/s2 to the west 0.42 m/s2 to the west 0.42 m/s2 to the eastarrow_forward
- In the very Dutch sport of Fierljeppen, athletes run up to a long pole and then use it to vault across a canal. At the very top of his arc, a 55 kg vaulter is moving at 2.5 m/s and is 5.1 m from the bottom end of the pole. What vertical force does the pole exert on the vaulter?arrow_forwardIf a net horizontal force of 132 N is applied to a person with mass 60 kg who is resting on the edge of a swimming pool, what horizontal acceleration is produced? 2.2 m/s^2 No answer 22.2 m/s^2 29.20 m/s^2 7920 m/s^2arrow_forwardA woman stands on a scale while riding in an elevator. When the elevator is at rest, the scale reads 60kg. What will be the reading of the scale in kg when the elevator accelerates. (a) upward at 1.2 m/s^2. (b) downward at 1.2 m/s^2. (c) At what acceleration of the elevator would the person appear to be weightless? Draw the FBD of the problem.arrow_forward
- In the figure, a slab of mass m1 = 40 kg rests on a frictionless floor, and a block of mass m2 = 10 kg rests on top of the slab. Between block and slab, the coefficient of static friction is 0.60, and the coefficient of kinetic friction is 0.40. A horizontal force F→ of magnitude 104 N begins to pull directly on the block, as shown. In unit-vector notation, what are the resulting accelerations of (a) the block and (b) the slab?arrow_forwardA constant horizontal force F = 200 N is applied for a time 0.1 s by a kick to a soccer ball of mass m=0.4 kg. If the ball was initially traveling toward the player at 20 m/s, what is the speed as it leaves her foot traveling in the opposite direction? Choose the correct answer. 50 m/s 20 m/s 10 m/s 30 m/s 70 m/sarrow_forwardA baseball has a terminal speed of 42 m/s in air (ρ = 1.2 kg/m3). What would be its terminal speed in water (ρ = 1.0 x 103 kg/m3)? Group of answer choices 42 m/s 1.5 m/s 1200 m/s 18 m/s 0.05 m/sarrow_forward
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningGlencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill