I Review I Constants While a roofer is working on a roof that slants at 37.0° above the horizontal, he accidentally nudges his 88.0 N toolbox, causing it to start sliding downward, starting from rest. Part A If it starts 4.00 m from the lower edge of the roof, how fast will the toolbox be moving just as it reaches the edge of the roof if the kinetic friction force on it is 20.0 N? Express your answer in meters per second. ? v = m/s Submit Request Answer Provide Feedback Next >

I Review I Constants While a roofer is working on a roof that slants at 37.0° above the horizontal, he accidentally nudges his 88.0 N toolbox, causing it to start sliding downward, starting from rest. Part A If it starts 4.00 m from the lower edge of the roof, how fast will the toolbox be moving just as it reaches the edge of the roof if the kinetic friction force on it is 20.0 N? Express your answer in meters per second. ? v = m/s Submit Request Answer Provide Feedback Next >

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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Consider the following diagram. m1=20 kg and m2= 10 kg. The system is being pulled by an applied force of 200 N. directed 50" above the horizontal. The coefficient of kinetic friction between the block and the surface is u-0.2. 50 m, 20kg Coefficient of friction 4=0.2 10 kg. 309 7) Calculate the acceleration of the system. Your answer 8) Calculate the magnitude of the Tension on the rope. Your answer N 00
pls send me answer of this question all the parts pls and i will rate you sure, pls solve a,b,c and d and also a and b A 200-kg dragster (racing car) exerts a constant force of 4000 N during a race. The coefficient of kinetic friction between the tires and the pavement is .15. If the drag strip is 1000 m long, determine:a. The net force on the dragster. b. The acceleration of the dragster. c. The time it takes for the dragster to finish the race.d. The dragster's velocity at the end of the race.The dragster now needs to slow down, so it opens a parachute. The force of air drag is 3500 N. The driver also locks the brakes of the dragster, and the coefficient of kinetic friction becomes .75. Determine:a. How long it will take to stop the dragster.b. The distance the dragster travels while stopping.
The two ramps pictured here each have a region of length L with kinetic friction coefficient uk and are otherwise frictionless. Identical masses m start at identical heights up the ramps, with the same initial velocity down the ramp. How do their final speeds compare when they reach the far right-hand side? (The answer requested here is qualitative and does not require detailed calculation). L m m Vi #0 Vi O Mass is moving faster in #1 The masses are moving at the same speed. Mass is moving faster in #2 O There is not enough information to decide. L Mk#0 1 2 m m Vf,1 V₁,2
For Belt Friction, why it's possible to increase the tension in one side while maintaining the tension in the other side constant,; all while rope doesn't slip in the process? O because kinetic friction acting against the tension decreases up to a certain limit O because static friction acting against the tension increases up to a certain limit because kinetic friction acting against the tension increases up to a certain limit O because static friction acting against the tension decreases up to a certain limit
The force of friction General Physics (Y1 EOGD) Dr. Hayfaa Raheem Example 2 A 3kg block starts from rest at the top of 30° incline and slides a distance of 2m down the incline in 1.5s. Find (a) the acceleration of the block, (b) the coefficient of kinetic friction between the block and the plane, wel bnS noweM (c) the friction force acting on the block, and (d) the speed of the block after it has slid 2m. Solution -15s
A block is pulled along a rough level surface at constant speed by the force P. The figure shows the free-body diagram for the block. FN represents the normal force on the block; and / represents the frictional force. If the coefficient of kinetic friction, HR , between the block and the surface is 0.30 and the magnitude of the frictional force is 80.0 N, what is the magnitude of the normal force FN? mg OA 410 N OB 160 N OC 1.6 N OD.4.0 NA OE 270 N
01/ A porter governor its central load is 18 kg and the weight of each ball is 2 kg. The top arms are 25 cm while the bottom arms are each 30 cm long and all arms pivoted on the axis of Governors (Homework's) tation. The friction of the sleeve is 14 N. If the top arms make 45° with the axis of rotation in equilibrium position, find the speed of the governor at that position. 021 The four arms of a proell governor are 300 mm long and are pivoted on the axis of rotation. Fach ball weight 5 kg and is carried on an extension 100 mm long of the lower arms. The central load on the sleeve is 80 kg. Calculate the equilibrium speed of the governor to radius of rotation of 150 mm when the extension arm is vertical. Q3/ A porter governor has equal links, each 250 mm long pivoted at the axis of rotation, each ball is of mass 4 kg and the mass of the central load is 15 kg. The governor begins to lift when the ball radius is 150 mm. It has a maximum speed at a radius of 200 mm. Determine the maximum…
• O O O 9:E1 docs.google.com/for O Untitled Section Determine the force P required to lower the 40-kg cylinder at a slow steady speed. The coefficient or friction between the cord and its supporting surface is 0.30. (g = 10 m/s). 40 kg Your answer If (u, = 0.4) then the o between the normal force N and the friction force F will be Your answer العربية الإنجليزية
The diagram below represents an elevator used to lift concrete blocks to upper levels on a construction site. The belt travels at a velocity of 0.9 m/s and is inclined at 26° above the horizontal plane. A yolluy € ф 300 mm 008 to NOT TO SCALE alaups 1909 provided to come Calculate the frictional force and the coefficient of friction between each block and the belt. Each block weighs 16.5 kg. Frictional Force: N Coefficient of Friction: ..........
The 300N block rests upon a level plane for which the fk is 0.20. A force P = 100N, directed at 30° from the horizontal pulls the block and moves 80m starting from rest. If the 100N force is then removed, how much further will it travel? CHOICES: 48.803m 47.800m 40.780m none 40.078m
2 of 2 3- (KINETICS) The coefficient of friction under each of the weights shown in Fig. is 0,1. Solve of the acceleration of the weights and the tension T in the rope. Neglect the friction and weight of the pulley. 1000 N 1000 N 30 4- (WORK AND ENRGY) A brick stats from rest on a roof that risess cm for each 12 cm and slides for a distance of 4m before reaching the edge of the roof that is 5m above the ground. The coefficient of friction between the brick and the roof is 0,4. Determine the velocity at which brick leaves the roof and the distance from the building to the point where it strikes the ground. W 5m 5- (Power ) An engine attains a velocity of 30 km/h in 2 min from rest in a train of 200 kN weight on a level line. If the resistance is 5 N per kN, find the greatest horse power the engine is developing and also the greatest velocity it can attain if this power is maintained.
Consider the following diagram. m1320 kg and m2= 10 kg. The system is being pulled by an applied force of 200 N, directed 50 above the horizontal. The coefficient of kinetic friction between the block and the surface is u=0.2. 500 20kg m, 10 kg Coeficent of friction 4= 0.2 30 7) Calculate the acceleration of the system. * Your answer 8) Calculate the magnitude of the Tension on the rope. Your answer