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* Figure P4.7 shows an unlabeled force diagram for a hockey puck. The length of the sides of the square grid corresponds to a force magnitude of 1 N. Draw a similar square grid on paper and then draw the vector for the force that should be exerted on the puck so that the puck. (a) moves with constant speed, (b) moves with constant acceleration toward the north, (c) moves with constant acceleration toward the west, and (d) moves with constant acceleration toward the east.
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Pearson eText for College Physics: Explore and Apply -- Instant Access (Pearson+)
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- In Chapter 5, you will study a very important vector, force. Each case in Figure P3.13 shows an example of force vectors exerted on an object. These forces are all of the same magnitude F0. Assume that the forces lie in the plane of the paper. Rank the cases from greatest to smallest according to the magnitude of the total force. Note: The total force is the vector sum of the individual forces exerted on the object.arrow_forwardA hockey stick pushes a 0.160-kg puck with constant force across the frictionless surface of an ice rink. During this motion, the pucks velocity changes from 4.00 m/s to (6.00 + 12.00) m/s in 4.00 s. a. What are the scalar components of the force acting on the puck? b. What is the magnitude of the force acting on the puck?arrow_forwardIn (Figure 1), the man has a mass of 90 kg and the crate has a mass of 160 kg. The coefficient of static friction between his shoes and the ground is μ = 0.4 and between the crate and the ground is μ = 0.3. Figure t Part A Determine if the man is able to move the crate using the rope-and-pulley system shown. The man can move the crate. The man cannot move the crate. Submit ✓ Correct Part B F, Fmax = Previous Answers Prove your answer to part A by calculating the static frictional force F between the man's shoes and the ground required to move the crate and the maximum static frictional force Fmax which can be developed. Express your answers in newtons to three significant figures separated by a com_ma. 15| ΑΣΦ41 Submit Provide Feedback Request Answer vec Review N Next >arrow_forward
- A person is leaning against a wall as shown in (Figure 1). igure 1 of 1 Draw a free-body diagram of the person. Draw the vectors starting at the black dot. The location and orientation of the vectors will be graded. The length of the vectors will not be graded. (+ Ⓒ f static friction nwall wall normal force w weight nfloor floor normal force Press ESC to return to the main menu. Press [CTRL+Q) to quit the application. i ?arrow_forwardA boulder is being pushed by two different people on a flat terrain. The net force on the boulder can be expressed in the Cartesian coordinate system as vector f = (-4i + 5.5j)N. Where I and j denote directions to the east and north. A. Find the magnitude in N B. Find the direction (in degrees counterclockwise from the east axis) of the push.arrow_forwardWhen a parachute opens, the air exerts a large drag force on it. This upward force is initially greater than the weight of the sky diver and, thus, slows him down. Suppose the weight of the sky diver is 992 N and the drag force has a magnitude of 1093 N. The mass of the sky diver is 101 kg. Take upward to be the positive direction. What is his acceleration, including sign? Number i Unitsarrow_forward
- Using your graph paper, a protractor, and a centimeter scale, draw arrows to represent the forces F1 and F2 described above. Choose a scale and draw each force vector so that its length is proportional to the magnitude of the force. The direction of each arrow must be the same direction as the force it represents. Using the head-to-tail method, draw an arrow that represents the resultant of the two vectors. (Don’t forget to record the scale you chose.) From the length of the resultant vector R, determine its magnitude according to your scale. Using the protractor, determine the resultant vector’s direction (angle). Please record your results in the table on the first screenshot. Using your calculator, determine the x and y components of F1 and F2. Remember that FX = Fcosθ and FY = F sinθ. Find the x and y components of the resultant from the sum of x and y components. Calculate the magnitude of the resultant force from the square root of (R 2 + R 2 ). Calculate the direction of the…arrow_forwardTwo crates connected by a rope lie on a horizontal surface (see figure below). Crate A has mass mA and crate B has mass mB. The coefficient of kinetic friction between each crate and the surface is μk. The crates are pulled to the right at constant velocity by a horizontal force F. Calculate the magnitude of the force F in terms of mA, mB,& μkarrow_forwardA person pushes horizontally with a force of 221 N on a 55.0 kg crate to move it to the right across a level floor. The coefficient of kinetic friction is 0.350. What is the magnitude of (a) the frictional force and (b) the crate's acceleration? The directions of the four forces and the acceleration must be identified. Make a free-body diagram. Please use the blue vector to specify forces and the pink vector for acceleration. Please make sure to label each vectors. The labels should none, mg, fk, a, FN, or Fpushing.arrow_forward
- A space probe has two engines. Each generates the same amount of force when fired, and the directions of these forces can be independently adjusted. When the engines are fired simultaneously and each applies its force in the same direction, the probe, starting from rest, takes 26.8 s to travel a certain distance. How long does it take to travel the same distance, again starting from rest, if the engines are fired simultaneously and the forces that they apply to the probe are perpendicular? Number i Unitsarrow_forwardA stockroom worker pushes a box with mass 12.9 kg on a horizontal surface with a constant speed of 2.50 m/s. The coefficients of kinetic and static friction between the box and the surface are 0.340 and 0.470, respectively. For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of Delivering the goods. F₂ = 43.0 N Submit ✓ Correct Part B Previous Answers a = If the worker stops pushing, what will be the acceleration of the box? Express your answer in meters per second squared. Assume that + direction coincides with the direction of velocity. ► View Available Hint(s) Submit VI ΑΣΦ Previous Answers wwww ? X Incorrect; Try Again; 3 attempts remaining Review | Constants m/s²arrow_forward* Incorrect. The figure shows a box of mass m₂ = 1.1 kg on a frictionless plane inclined at angle 0 = 29°. It is connected by a cord of negligible mass to a box of mass m₁ = 2.9 kg on a horizontal frictionless surface. The pulley is frictionless and massless. (a) If the magnitude of the horizontal force is 1.1 N, what is the tension in the connecting cord? (b) What is the largest value the magnitude of may have without the connecting cord becoming slack? (a) Number i 7.07 (b) Number i Save for Later Units Units Myarrow_forward
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
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