2 Figure 7-16a shows two horizontal forces that act on a blockthat is sliding to the right across a frictionless floor. Figure 7-16bshows three plots of the block's kinetic energy K versus time t.Which of the plots best corresponds to the following three situ-ations: (a) F = F2, (b) F; > F2, (c) F < F;?(a)(6)Figure 7-16 Question 2.

Case F1=F2: As the block is initially moving in the right direction, and if the equal and opposite…

Answered: 2 Figure 7-16a shows two horizontal…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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An elevator suspended by cables ascends, with constant speed, during a certain time interval. The total work done on the elevator in this time interval is: Choose an option: a) missing datab) Same as pulling work on cablesc) Nulld) Positivee) Negativef) Equal to the work of gravitational force
A 1.50-kg block at rest on a ramp of height h. When the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 10.0 cm that has a coefficient of kinetic friction µk = 0.60. Using conservation of energy, find h such that the block’s speed after crossing the rough patch is 3.50 m/s.
A small boat is crossing a pond on a windy day. During some interval of time, the boat undergoes the given displacement Ar: Ař = (3.50 m)i + (2.85 m)ĵ During the same interval of time, the wind exerts the given force F on the boat: F = (260 N) – (135 N)Ĵ (a) What is the total work done on the boat by the wind over this period of time? (b) What is the angle between the direction of the wind force and the direction of the boat's motion during this time interval?
A bead of mass m = 5.30 kg is released from point A and slides on the frictionless track as shown in the figure below. The height of A is ha = 5.10 m. %3D ha 3.20 m 2.00 m (a) Determine the bead's speed at pbints B and C. point m/s В 8.4 point C Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four- digit accuracy to minimize roundoff error. m/s (b) Determine the net work done by the force of gravity in moving the bead from A to C. 141.12 Your response differs from the correct answer by more than 10%. Double check your calculations. J
Problem 1: A60.0 kg skier with an initial speed of 13 m/s coasts up a 2.50 m high rise as shown in the figure. V; = ? KE V 2.5 m 35° ©theexpertta.com A Find her final speed right at the top, in meters per second, given that the coefficient of friction between her skis and the snow is 0.39. Ve = sin) cos() tan() 8 9 HOME cotan() asin() acos() E 5 atan() acotan() sinh() 1 2 3 cosh() tanh() cotanh() END ODegrees O Radians vol BACKSPACE CLEAR I give up! Submit Hint Feedback
As shown in the figure below, a 2.25 kg block is released from rest on a ramp of height h When the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 15.0 cm that has a coefficient of kinetic friction - 0.750. Find h (in m) such that the block's speed after crossing the rough patch is 3.10 m/s. Additional Materials muh puch mining 15.0 cm Reading
A 80-kg base runner begins his slide into second base when he is moving at a speed of 4.7 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base. (a) How much mechanical energy is lost due to friction acting on the runner?J(b) How far does he slide?m
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A Block-Spring System A block of mass 1.0 kg is attached to a horizontal spring that has a force constant of 2,000 N/m as shown figure (a). The spring is compressed 3.0 cm and is then released from rest as in figure (b). (a) A block attached to a spring is pushed inward from an initial position x-O by an external agent. (b) At position x, the block is released from rest and the spring pushes it to the right. (For the following, when entering a mathematical expression, do not substitute numerical values; use variables only.) (a) Calculate the speed of the block as it passes through the equilibrium position x - 0 if the surface is frictionless. SOLUTION Conceptualize This situation has been discussed before, and it is easy to visualize the block being pushed to the right by the spring and moving with some speed at x = 0. Categorize We identify the system as the block and model the block as --Select- system. Analyze In this situation, the block starts with v, - 0 at x, = -3.0 cm, and we…
In the figure below, a block of ice slides down a frictionless ramp at angle 0 = 50° while an ice worker pulls on the block (via a rope) with a force Fr that has a magnitude of 45 N and is directed up the ramp. As the block slides through distance d = 0.31 m along the ramp, its kinetic energy increases by 60 J. How much greater would its kinetic energy have been if the rope had not been attached to the block? ---Select--- F. A
As shown in the figure below, a 2.25 kg block is released from rest on a ramp of height h. When the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 15.0 cm that has a coefficient of kinetic friction ?k = 0.510. Find h (in m) such that the block's speed after crossing the rough patch is 3.60 m/s. (Enter a number.)?m
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