Please solve and answer the question correctly please. Thank you!! आ The two blocks are released from rest and the 32-lb block B moves 2 ft up the incline. Thecoefficient of kinetic friction between both blocks and the inclined planes is μ=0.10.(Figure 1)Determine the velocity of the 80-lb block A.Express your answer to three significant figures and include the appropriate units.▸ View Available Hint(s)for Part A for Parte do for Part redo for Part A re for Part A keyboard shortcuts for Part A help for Part A2.31ftSSubmitPrevious Answers Request Answer

Step 1: WA=80lb,WB=32lb,μk=0.10,xB=2ftIncline angles:Block A: 60∘,Block B: 30∘Initial velocity:…

Answered: आ The two blocks are released from rest…

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter2: Representing Motion

Section2.3: Position-time Graphs

Problem 15PP

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Figure P4.8 shows the motion diagram of two balls. The time interval between images is 0.036 s. Each ball starts at point i. The ball on the left is released and falls straight down. At the same time, the ball on the right is launched horizontally and follows the path shown. a. Write the velocity and acceleration of each ball as a function of time. b. What is the velocity and acceleration of each ball at i, G, and K? c. Compare your answers for the two balls in part (b). What similarities do you notice? FIGURE P4.8 Problems 8 and 26.
A trapper walks a 5.0-km straigt4ine distance from his cabin to the lake, as shown in the following figure. Use a graphical method (the parallelogram rule) to determine the trapper’s displacement directly to the east and displacement directly to the north that sum up to his resultant displacement vector. If the trapper walked only in directions east and north, zigzagging his way to the lake, how many kilometers would he have to walk to get to the lake?
Assuming the axis is horizontal to the right for the vectors in the following figure, find the following scalar products (a) (b) (c) (d) (e) (g) and (h)
(a) If AF=BF , can we conclude A=B ? (b) If AF=BF , can we conclude A=B ? (c) If FA=BF , can we conclude A=B ? Why or why not?
The layout of the town of Popperville is a perfectly square grid, with blocks 100 feet long (Fig. P3.8). A cat leaves her house and travels to Mike Mulligans place 4 blocks west and 3 blocks north of its starting point. After lapping up the milk that Mike always leaves out, the cat travels an additional 1 block north and 3 blocks east to Mrs. McGillicuttys house. a. On your paper, carefully copy the grid of streets that contains the cats house, Mike Mulligans house, and Mrs. McGillicuttys house. Then draw and label three displacement vectors on your sketch: r1, the cats displacement from her house to Mike Mulligans; r2, the cats displacement from Mike Mulligans to Mrs. McGillicuttys; and rtot, the cats total displacement. b. Write an equation to relate the three displacement vectors you have drawn. c. Is the distance the cat traveled greater than, less than, or equal to the magnitude of the cats total displacement vector? Explain. FIGURE P3.8
Solve the following problem using analytical techniques: Suppose you walk 18.0 m straight west and then 25.0 m straight north. How far are you from your starting point, and what is the compass direction of a line connecting your starting point to your final position? (If you represent the two legs of the walk as vector displacements A and B, as in Note that you can also solve this graphically. Discuss why the analytical technique for solving this problem is potentially more accurate than the graphical technique.
between points in a plane do not change when a coordinate system is rotated In other words, the magnitude of a vector Is invariant under rotations of the coordinate system. Suppose a coordinate system S is rotated about its origin by angle to become a new coordinate system S’, as shown in the following figure. A point in a plane has coordinates (x,y)in S and coordinates (x,y) in S’. (a) Show that, during the transformation of rotation, the coordinates in S are expressed in terms of the coordinates in S by the following relations: {x=xcos+ysiny=xsin+ycos (b) Show that the distance of point Pto the origin is invariant under rotations of the coordinate system. Here, you have to show that x2+y2=x2+y2. (c) Show that the distance between points Pand Q is invariant under rotations of the coordinate system. Here, you have to show that ( xP =xQ )2+( yP yQ )2=( xP =xQ )2+( yP yQ )2 .
For the three-dimensional vectors in the following figure, find (a) GH , (b) GH , and (c) GH .
A barge is pulled by the two tugboats shown in the following figure. One tugboat pulls on the barge with a force of magnitude 4000 units of force at 15 above the line AB (see the figure and the other tugboat pulls on the barge with a force of magnitude 5000 units of force at 12 below the line AB. Resolve the pulling forces to their scalar components and find the components of the resultant force pulling on the barge. What is the magnitude of the resultant pull? What is its direction relative to the line AB?
CASE STUDY How Many Dimensions? In each case, determine whether the object is moving in one, two, or three dimensions. a. The rider in the ollie (Fig. 4.2A). b. The skateboard in the ollie (Fig. 4.2A). c. The rider in the hippy (Fig. 4.2B). d. The skateboard in the hippy (Fig. 4.2B).
In Figure 2.12, match each vxt graph on the top with the axt graph on the bottom that best describes the motion.

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