Lab 5 Springs Worksheet (1)

Practice Problems Date: gpb.org/physics-motion Work each of the following problems. SHOW ALL WORK. 5. A 25 kg block is pulled with an applied force of 200 N across a horizontal surface. The block experiences a frictional force of 75 N. a. Draw a free-body diagram for the block, including all forces acting on the block. b. Determine the net force acting on the block. c. Calculate the acceleration of the block.

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Return to page 61 of the Student Module Booklet and begin Lesson questions 11 to 14, read each question carefully. Decide which of the choices completes the statement or answers the question. Place your answer in the I space given. 11. You can reduce the braking force required to stop a car by A. lengthening the braking time B. reducing the braking time C. increasing the friction between the tires and the road D. increasing the friction between the brake pads and drums 12. To decrease the forces experienced in an accident, A. decrease the time over which the change in momentum occurs B. increase the time over which the change in momentum occurs C. increase the change in velocity D. increase the mass of the vehicle

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Two stationary blocks of mass m and M are connected by a massless, frictionless pulley as shown. The coefficient of static friction is us, between block M and the surface. Please show your work and give your answers in terms of the given variables and g. a) What is the force of static friction on block M? b) What is the maximum mass m when the blocks are still stationary? M m

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Question 2 This question is a short free-response question. Show your work for each part of the question. Block Submit Person Ice A person pushes a large block on a horizontal ice surface in a straight line to the right with constant speed, as shown above. The mass of the block is 10 kg and frictional forces between the block and the ice are negligible. However, the block has a wide cross-sectional area such that air resistance acting on the block cannot be neglected. The opposite is true for the person: air resistance on the person is negligible, but the person's shoes do not slip on the ice. The table shows the force exerted by the person on the block for several values of constant speed. Force of person's push (N) Constant speed of block (m/s) +0.05 20 1.25 40 2.51 60 3.73 80 5.00 (a) A student claims that the data show that the magnitude of the force of air resistance is proportional to the speed of the object, within experimental uncertainty. Use physics principles to explain…

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The coefficient between the blocks and the planes in the figure below is 0.2 and the two blocks are moving along the plane as shown. Do the following. 1) Copy the figure and isolate objects of interest. 2) Draw the force diagram for each object of interest. 3) Establish the convenient coordinate axis for each object. 4) Write the unbalanced force equations for each object.

Senior Physics Final Your email will be recorded when you subrmit this form Not 912615@oside.us? Switch account * Required Newton's Laws An object with a mass of 40 kg is acted on by a net force of 680 N. Determine the acceleration of the object. Enter your answer as a number with no letters or units. Your answer This is a required question What is the net (total) force on this object? 0.25 2 N+ 6 N kg

PROBLEM SET # 8: PARTICLE UNDER A NET FORCE On the space provided, present correct and organized solutions to the following answered problems. Box the final answers. Detach each page neatly and submit to your instructor. A 2.5-kg concrete block sliding on a vertical wall is being acted upon by a force P as shown in the figure below. Assume that the coefficient of kinetic friction between the 2. concrete block and the wall is 0.88. 148° (a) Draw the free-body diagram of the concrete block. (b) If the normal force exerted by the wall to the concrete block is 20.0 N, what would be the magnitude of the external force P, and (Ans: 37.74 N) (c) The acceleration of the block? (Ans: -15.56 m/s)

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6. Please help me answer both parts to this physics problem

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Questions: A group of students performed this lab and generated this graph of energy lost vs, distance. The group then repeats the lab, with a material with a smaller coefficient of friction. On the graph above, draw in RED a line that would be generated in this case. Explain your answer. Once again, they return to the original experiment but set the ramp at a smaller angle. On the graph above, draw in GREEN a line that would be generated in this case. Explain your answer. Can you also explain how a Energy Lost vs Distance Traveled graph gets coefficient of friction? Questions: A group of students performed this lab and generated this graph of energy lost vs. distance. 1. J Epargy Lost distance traveled (m) The group then repeats the lab, with a material with a smaller coefficient of friction. On the graph above, draw in RED a line that would be generated in this case. Explain your answer. 2. Once again, they return to the original experiment but the ramp at a smaller angle. On the…

1) Using the result from Pre-Lab Question 2, calculate the coefficient of friction for each angle in Table 1 and Table 2. Find the average value for the coefficient of friction for wood and metal on cardboard. 2) Comment on your coefficients of static friction for wood and metal. If they are different, why do you think they are different? If they are the same, why do you think they are the same?

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Font Paragraph Styles Solve the following problems. Show your solution clearly and box your answer. 1.A horizontal force of 20 N is required to keep a 6.0 kg body in uniform motion along a horizontal surface. Find the coefficient of friction.

Learning Objectives: In this assignment students will use Newton’s laws and solvesystems of symbolic equations to find quantities of motion such as position, velocity,acceleration and time. Students will represent information in multiple ways. Studentswill make predictions and assess their work.Problem Statement: An object of mass m rests at the top of a smooth slope ofheight h, length L and angle ?. The coefficient of kinetic friction ??. A very smallpush overcomes static friction, and the object begins to slide down the slope.Using your knowledge of kinematics, determine a symbolic expression for the object’sspeed when it reaches the bottom of the hill. This should be in terms of some of all ofgiven/known variables m, h, L, g, ? and ??. Check the physical units of yourexpression.

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Two blocks, 1 and 2 are joined by an ideal chord and slide down an inclined plane, as shown in Figure 6. Both blocks have the same mass, m, but the kinetic coefficients of friction of the blocks with the surface of the plane are different, where lz > µ1. The system accelerates down the slope and the rope that connects them remains taut. 1 Figure 6. Exercise 6 diagram, blocks joined by ideal rope Calculate the tension force of the string in terms of m, H2, P1,0 and g.

Contact Forces Introduced 12 of 22 Constants | Periodic Table Learning Goal: To introduce contact forces (normal and friction forces) and to understand that, except for friction forces under certain circumstances, these forces must be determined from: net Force = ma. Normal and friction forces Two solid objects cannot occupy the same space at the same time. Indeed, when the objects touch, they exert repulsive normal forces on each other, as well as frictional forces that resist their slipping relative to each other. These contact forces arise from a complex interplay between the electrostatic forces between the electrons and ions in the objects and the laws of quantum mechanics. As two surfaces are pushed together these forces increase exponentially over an atomic distance scale, easily becoming strong enough to distort the bulk material in the objects if they approach too close. In everyday experience, contact forces are limited by the deformation or acceleration of the objects,…

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