For the following scenarios, be sure to draw a correct Free Body Diagram before solving. RESOLVING FORCES 1. One day in Chapman's class, three students decided to attempt to push a 100kg desk across the classroom. One student pushes with a force of 10N to the right while another student pushes with a force of 23N to the left. The third student pushes with an unknown force. Calculate the magnitude and direction of the third student's force if the desk remains stationary. Calculate the Normal Force.

For the following scenarios, be sure to draw a correct Free Body Diagram before solving. RESOLVING FORCES 1. One day in Chapman's class, three students decided to attempt to push a 100kg desk across the classroom. One student pushes with a force of 10N to the right while another student pushes with a force of 23N to the left. The third student pushes with an unknown force. Calculate the magnitude and direction of the third student's force if the desk remains stationary. Calculate the Normal Force.

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 72AP: Two small forces, F1=2.40i6.10tj N and F2=8.50i9.70j N , are exerted on a rogue asteroid by a pair...

See similar textbooks

Similar questions

Two small forces, F1=2.40i6.10tj N and F2=8.50i9.70j N , are exerted on a rogue asteroid by a pair of space tractors. (a) Find the net force. (b) What are the magnitude and direction of the net force? (c) If the mass of the asteroid is 125 kg, what acceleration does it experience (in vector form)? (d) What are the magnitude and direction of the acceleration?
I am pulling my kids in their wagon on the way to the park. The handle makes an angle of 40° above thehorizontal and I am pulling with a force of 85.0 ? along the handle. My kids and the wagon have acombined mass of 28 ??.a. Draw a free-body diagram, labeling all the forces acting on the wagon and any angles that mayappear in your diagram. Include friction. There should be four forces in your diagram.b. Write out Newton’s second law in the x- and y-directions (∑ ?? = ??? and ∑ ?? = ???).c. What is the normal force exerted on wagon from the ground?d. What is the magnitude of the frictional force if the wagon is moving at a constant velocity?5e. What is the coefficient of kinetic friction between the wagon and the ground?
Santa Clause is about to distribute his gifts, but his reindeer Rudolph is still sleepy. So, instead of flying they use the ground and cross a 20-m-long bridge. Starting from rest, Rudolph pulls Santa and his sleigh, with a force F 30° above the horizontal against a frictional force of 80N. 1. Draw an appropriate free body diagram to represent all the forces acting on Santa and his sleigh. 2. Suppose the combined mass of Santa, his sleigh, and his gifts is 500kg. What is the magnitude of Fif the acceleration of Santa and his sleigh is 1.5 meters per second squared? 3. How much work is done by Rudolph in pulling Santa and his sleigh in crossing the bridge? 4. What is the change in the kinetic energy of Santa and his sleigh after crossing the bridge? 5. How fast are they moving at the end of the bridge?
Suppose two children push horizontally, but in exactly opposite directions, on a third child in a wagon. The first child exerts a force of 75.0 N, the second a force of 90.0 N, and the mass of the third child plus wagon is 23.0 kg. Assume no friction in this problem. a. Draw a free-body diagram, including all forces acting on the wagon. b. Show the component equations (Fx and Fy) in terms of variables only. c. Calculate the acceleration.
Two blocksmịand m2 connected by a rope are being pulled by a horizontalforce F equal 160 N. Suppose that mį=10 kg,20 kg, and the coefficient of kineticm 2 =20 kg10 kgfriction between each block and the surfacem1is 0.52.A. Draw free-body diagrams of both objects.B. Find the acceleration of the systemC. Find the tension in the ropeD. What is the distance that the system ( two masses) will travel if youknow that are started from rest and final velocity is 4.5 m/sec(B) a= { F
A block with mass m = 5 kg is pushed with a force of = 30 N. Please answer F1 the following: A. Draw a body diagram ( like I did in lecture) representing all forces acting on the block. B. If the coefficient of static friction is = 0.5, does the block move? ( μscompare with )FsF1 C. The block starts moving, if the coefficient of static friction is =0.2 find .μkFk D. Find the acceleration. E. After t = 2 s how far did the block move? (the initial position and initial Xi velocity are both zero)Vi F. What is the velocity after t = 3 s ?
The cart in the figure is attached to special spring that can stretch and compress equally well. The springis very light. The cart and spring rest on a low-friction horizontal surface. The cart is pulled to position Iand then released. It moves to position V where it then reverses direction again to position I. A)Draw a force diagram forpoint I, cart moving left. B) Draw a force diagram forpoint III, cart moving left.
For the following problem, draw free-body diagrams and solve for the requested unknown. Use g = 9.8 m/s/s. A 22.6-N horizontal force is applied to a 0.0710-kg hockey puck to accelerate it across the ice from an initial rest position. Ignore friction and determine the final speed (in m/s) of the puck after being pushed for a time of .0721 seconds. PSYW
A woman who weighs 602 N sits on a chair with her feet on the floor and her arms resting on the chair’s armrests. The chair weighs 100 N. Each armrest exerts an upward force of 25.0 N on her arms. The seat of the chair exerts an upward force of 500 N. a. What force does the floor exert on her feet? Enter your answer as positive for upward direction and negative for downward direction. asnwer in N b. What force does the floor exert on the chair? Enter your answer as positive for upward direction and negative for downward direction. answer in N c. Consider the woman and the chair to be a single system. Let the subscripts be the following: s = woman and chair system, e = Earth, f = floor. Choose the correct FBD for this system that includes only the external forces acting on it. (OPTIONS ATTACHED)
A rugby player is being pushed backward by an opposing player who is exerting a force of 785N on him. The mass of the losing player plus equipment is 92.0 kg, and he is accelerating at 1.50 m/s^2 to the left. a. Draw a free body diagram to determine the sum of the forces acting on the losing player in the horizontal direction. Enter expression in terms of magnitute. b.What is the force of friction exerted on the losing playes feet by the grass? c. What force does the winning player exert on the ground to move forwars if his mass plus equipment is 125 kg?
A contestant in a winter sporting event pushes a 45 kg block of ice in the positive direction across a frozen lake as shown in the figure. Assume the coefficients of static and kinetic friction are μs=0.1 and μk=0.03. a. Calculate the minimum force F he must exert to get the block sliding across the ice in newtons. b. What is its acceleration once it starts to move, if that force is maintained in m/s2?
A block of mass ?= 4.50 kg is pushed by a force ?⃗ of magnitude 8.80 N on a horizontal, smooth (frictionless) surface. The force makes an angle θ= 30. 0∘below the horizontal, as shown in the figure. a. Draw a free body diagram of the block b. Find the normal force exerted by the surface on the block. c. Find the acceleration of the block.