Q22. As shown in the image below, the force acting on the 3-kg crate is a function of time. The coefficient of kinetic friction between the crate and the surface is μk= 0.19. Determine the magnitude of the horizontal impulse (in N.s) done by all external forces to the crate during the period from t = 0 to t = 2.3 s. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. Take g = 9.81 m/s². F=(201² +30) N (t in second) V₁ F. 30° Your Answer: Answer

Q22. As shown in the image below, the force acting on the 3-kg crate is a function of time. The coefficient of kinetic friction between the crate and the surface is μk= 0.19. Determine the magnitude of the horizontal impulse (in N.s) done by all external forces to the crate during the period from t = 0 to t = 2.3 s. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. Take g = 9.81 m/s². F=(201² +30) N (t in second) V₁ F. 30° Your Answer: Answer

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Muhammad does an experiment where he uses a string attached to a spring scale to pull horizontally on a wooden block of unknown mass. He uses a second spring scale to push down on the block, exerting a series of forces F1 on B on it. For each of these downward forces, he pulls horizontally on the spring scale attached to the string to determine the maximum force F2 on B he can exert on the block in the horizontal direction before it slides. He records all of his measurements in the table below. Determine (a) the mass of the block and (b) the coefficient of friction between the block and the table.
A 100-kg box is towed to move horizontally from rest by a constant force P=200 N. The kinetic friction is μk =0.1. The angle of the force P is θ=30° with respect to the horizontal direction. The acceleration due to gravity is g=9.81 m/s2. (5) Calculate the magnitude of the the friction force F= ___(N) (two decimal places).
Please answer question 3
4. For this series of 4 questions, two blocks, A and B, are connected using the cable and pulley system as shown. (The cable and pulley system is friction-less and weight- less.) The coefficient of kinetic friction between block A and the inclined plane is μk = 0. 2. Initially the blocks are moving but eventually come to stop. You will be asked to solve for different things. Please pay attention: the numbers may change from problem to problem since they are randomized. 3) If the blocks and the cable-pulley system are considered as one system, during this process from the blocks moving to them coming to stop, which forces are doing work to this system? A B C D Weight of block B. Weight of block A. Friction between block A and the incline plane. Tension force in the cable connecting to block B. Tension force in the cable connecting to block A.
The uniform 52-kg slender bar is initially at rest on a smooth horizontal plane when the forces are applied. If P₁ = 20 N and P₂ = 86 N, they are constant and are always perpendicular to the slender bar, determine angle (in degree) when time t = 0.40 s has passed. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. 0.75 m P₁ Your Answer: Answer 1.75 m 0.5 m P₂
the two blocks in the diagram are in static equilibrium. a) draw a force diagram and for each block and set up forces balances on each block. b) determine the tension in the rope and the mass of block 1 (M1) c) if both blocks have the same mass of 90 kg, what would the magnitude and direction of the acceleration of each block be?
The 20-kg crate is lifted by a force of F = (100 + 5t²) N, where t is in seconds. (Figure 1) Figure H B 1 of 1 Part A Determine how high the crate has moved upward when t = 2.5 s, starting from rest. Express your answer to three significant figures and include the appropriate units. S = Value Submit Provide Feedback Request Answer Units ? Next >
F = (C · t²) Q14. As shown in the image below, the force acting on the box is N, where constant C = 10 and t is time in s. Determine the magnitude of the total impulse (in N.s) done by force F to the box during the period from t = 0 to t = 1.5 s. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. F Your Answer: Answer 3 5 4
Answers should be 171lb, 18.59ft/s^2, Ax=72.17lb, Ay=125lb
The coefficient of kinetic friction between the60-kg crate and the ground is uf = 0.3. The crate starts from rest, and P = 225 N .(Figure 1) Part A Determine the velocity of the crate when t = 4s Express your answer to three significant figures and include the appropriate units. HẢ v = Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining • Part B Determine the distance the crate travels when 4 s Express your answer to three significant figures and include the appropriate units. Figure HÀ S = Value Units Submit Request Answer 30° Provide Feedback
Q22. As shown in the image below, the force acting on the 5-kg crate is a function of time. The coefficient of kinetic friction between the crate and the surface is uk = 0.15. Determine the magnitude of the horizontal impulse (in N-s) done by all external forces to the crate during the period from t = 0 to t= 2.3 s. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. Take g = 9.81 m/s2. %3D F = (201² +30) N (t in second) F = F. 30 V1 Your Answer: Answer
2. A 20 kg box sitting on a horizontal surface is pulled by a horizontal force of 64 N. The coefficient of kinetic friction between the box and the surface is 0.2. (Draw free-body diagram here) vsebn lognA en MOIT ANIMAX MATUM70038 blow 10 ode no tos 2010 Owl I 02 sa 0£to shingem seer sosot toriso 21 to obutingam and count onOno gol a. What is the normal force acting on the box?ib et bas 1910 marsib vbod-seil wai(1) b. What is the force of kinetic friction acting on the box? od no oond ton silt ei tad s c. What is the acceleration of the box? rss sdr to noitestsson sdt at tod in