Activity5. Unbalanced Forceections: Read and analyze the given situations and the free-body dingrams below.nawer the questions that foliow.A.A load initially at rest is pusbed to the right along a horizontal floor with a force ofSU N. Starting friction acts towards the opposite direction with a frictional force of 20 N.LoadStarting Friction 20 NF= 50 NFloor1. What is the magnitude of the resultant force or Fan? Fv(x2+ ya).2. What is the direction of the net force?3. Are the forces balanced?4. Will the load move?5. In what direction will the load move?B. A boy pushes a toy car at the back with a force of 2 N, to the right. Anotheapplies a force of 3 N to the right by pulling a string attached in front of the toy. Thefriction is 2 N to the left.Toy carF1=2 NFriction = 2N -F2=3 NFloor1. What is the magnitude of the resultant or net force?2. What is the direction of the resultant force?3. Will the toy car move? In what direction will it go?Complete the statement of Newton's First Law of Motion or the Law of InObjects at rest will remain at rest. Objects in motion will continue toforce.speed, unle-line path with a

Answered: Image /qna-images/answer/001dd18d-aa73-41fd-8264-655a0dd960f4.jpg

Answered: A. A load initially at rest is pushed…

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter6: Applications Of Newton's Laws

Section: Chapter Questions

Problem 39P: A student’s backpack, full of textbooks, is hung from a spring scale attached to the ceiling of an...

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A force of 1600 N acts parallel to a ramp to push a 300-kg piano into a moving van. The ramp is inclined at 20 . (a) What is the acceleration of the piano up the ramp? (b) What is the velocity of the piano when it reaches the top if the ramp is 4.0 m long and the piano starts from rest?
A student’s backpack, full of textbooks, is hung from a spring scale attached to the ceiling of an elevator. When the elevator is accelerating downward at 3.8m/s2 , the scale reads 60 N. (a) What Is the mass of the backpack? (b) What does the scale read if the elevator moves upward while speeding up at a rate 3.8m/s2 ? (c) What does the scale read if the elevator moves upward at constant velocity? (d) If the elevator had no brakes and the cable supporting it were to break loose so that the elevator could fall freely, what would the spring scale read?
Suppose you have a 120-kg wooden crate resting on a wood floor, with coefficient of static friction 0.500 between these wood surfaces. (a) What maximum force can you exert horizontally on the crate without moving it? (b) If you continue to exert this force once the crate starts to slip, what will its acceleration then be? The coefficient of sliding friction is known to be 0.300 for this situation.
A 2.0-kg block is on a perfectly smooth ramp that makes an angle of 30 with the horizontal. (a) What is the block’s acceleration down the ramp and the force of the ramp on the block? (b) What force applied upward along and parallel to the ramp would allow the block to move with constant velocity?
Check Your Understanding A car gas forces acting on it, as shown below. The mass of the car is 1000.0 kg. The rode is slick, so friction can be ignored. (a) What is the net force on the car? (b) What is the acceleration of the car?
Make force diagrams for the following situations. Draw & label forces as arrows with appropriate length. 1. A car propelled by a 250N force with air drag of 125 N/(m/s) at winds of 1 &2 m/s (2 diagrams).
VI. Does kinetic friction depend on the normal force? 21. Make a prediction. If normal force increases, does the kinetic friction increase, decrease, or stay the same? Give a reason r your prediction. 22. Use the Larger Area. Place the larger area of the block on the track. Record the hanging mass in the data table. Add a 500g rectangular block on top of the wood block. Change the hanging mass to 500g 23. Run the Experiment. Hang the 500g mass over the pulley. Repeat the experiment as before. 24. Change the Normal Force. Add a second 500g rectangular block on top of the block. Record the total mass in the data table. Perform the experiment again. 25. Change the Normal Force Again. Repeat the experiment by adding another 500g rectangular block on top of the block. Record the total mass. If the block does not move at all or stops after moving a short distance, add more mass to the hanging mass. Normal Force Dependence Total Block Hanging Mass Normal Force n = Mg (N) Mass Acceleration…
.A crate with a mass 32.5kg initially at rest on a warehouse floor is acted on by a net horizontal force of 140N. a. What acceleration is produced? b. How far does the crate travel in 10.Os? c. What is its speed at the end of 10.0s?
A small block is resting on a rough incline. There is a rope attached to the block that is pulling on it up the incline. Analyze the free body diagram provided and identify the forces. Be as specific as you can. Each correctly identified force is worth marks. 12 y, C. 'D 1. Gravitational Force 2. Spring Force B. 3. Теnsion 4. Normal Force 5. Static Friction 6. Kinctic Friction 7. Drag 8. Thrust B.
10.0 kg ver an experience "space sickHUL! changes in their bodies. What Have I Learned So Far? There are two carts hanging ona string that weigh 5 kg and 10 kg through a frictionless pulley as shown in the given figure. dalaw 5.0 kg 30° 1. What is the tension along the string? 2. Describe the acceleration of the two blocks. 3. Suppose the system is initially at rest with the heavier block at 2.5 meters above the ground. How long will it take for this block to reach the ground?nl 4. What is the velocity of the heavier block before it hits the ground? Newton's second provides explanation for why 2 m law an m
3. A bax is pushed as shown in the figure. Let the force applied by the man on the box be F. the friction force by the surface as 1. the normal force as N. and the gravitational force as W. What are the directions of these forces? Fis to me right, W is to the left, Nis upward and tis downwand. Fis to the right, Wis upward, N is downmard and fis to the left. Fisto the right, Wis downard, Nis upward and fis to the left. Fisto the left W is downward, Nis upward and fis to the right
A 200-g hockey puek is launched at an initial speed of 16 ni/'s up a metal ramp that is inclined at a B0° angle. Thecoefficients of statie and kinetic- friction between the hockey puck and the metal ranp are us =0.40 and uk=0.30, respectively. a. Sketch the situation and make a motion diagram (including acceleration vector) for the puck. b. Make a force diagram for the puck at at instant during its way up the ramp. c. Write an equation representing the sum of forces along the slope and an equation representing the sum of forces perpendicular to the slope. d. Find the friction force between the puck and the ramp. Show all work. e. Find the acceleration of the puck as it travels up the ramp. Show all work. f. Would the puck have greater, sımaller or saine acceleration if it had twice the mass (everything else about the situation being the same)?

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