14-59. The rocket sled has a mass of 4 Mg and travelsfrom rest along the horizontal track for which the coefficientof kinetic friction is μk 0.20. If the engine provides a150 kN, determine the power output ofconstant thrust T==the engine as a function of time. Neglect the loss of fuelmass and air resistance.TProb. 14-59

Answered: Image /qna-images/answer/e8874fde-5c18-4bf4-b00f-0a7f67b6956d.jpg

Answered: 14-59. The rocket sled has a mass of 4…

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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Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part Several forces are acting on a bolt as shown in the diagram below. It is desired to determine the resultant of all of the forces acting on the bolt. The axis of the bolt is at a 45° angle with respect to the x-axis. The line of action of force Pis parallel to the x-axis. The magnitudes of the forces and the angles labeled are as follows: P= 35 N S= 60 N T=31 N a=15° B= 65° Q = 53 N 8= 25° T S Using the x-and y-components of the resultant of the forces acting on the bolt, determine the magnitude of the resultant force. The magnitude of the resultant force is N.
Q 13-59
The 10-lb block has a speed of 4 ft/s when the force of F= (8t^2) lbf is applied.Determine the velocity of the block when t= 2 s. The coefficient of kinetic friction at the surfaceis uk = 0.2
The 65-kg crate rests on a horizontal platform for which the coefficient of kinetic friction is µk = 0.28. the crate is subjected to a 500-N towing force.Determine the velocity of the crate in 3s starting from rest and the weight of the crate?
The crate, which has a mass of 245 kg is subjected to the action of the two forces. If it is originally at rest determine the distance it slides in order to attain a speed of 12 m/s. The coefficient of kinetic friction between the crate and the surface is 0.18 800 N 30° 4 1000 N
15-51. The 30-Mg freight car A and 15-Mg freight car B are moving towards each other with the velocities shown. Determine the maximum compression of the spring mounted on car A. Neglect rolling resistance
*134. If the 50-kg crate starts from rest and achieves a velocity of e = 4 m/s when it travels a distance of 5 m to the right, determine the magnitude of force Pacting on the crate. The cocfficient of kinetic friction between the crate and the ground is = 0.3. 30 Probs. 13-314
The collar has a mass of 28-kg and slides along the smooth rod. Two springs are attached to it and the ends of the rod as shown. S kA kB: 12 0.25 m Each spring has an uncompressed length of I1=2-m and l2=3-m and stiffnesses k1=51-N/m and k2=176-N/m respectively. Determine the velocity that must be subjected to the collar to generate a compression of 0.7 m
Q2: The initially stationary 11-kg block is subjected to the time-varying force whose magnitude P is shown in the plot. The angle remains constant. Determine the speed of the block at time 4.5 seconds 100 11 kg 30° Hk=0.30 t, s P, N
The 750-mm-long spring is compressed by the plate P, which can slide freely on the 600- mm-long vertical bars. The 55.6-kg block is given a velocity of v = 5 m/s when it is x = 2 m above the plate. Determine how far the plate travels down when the block stops momentarily after hitting it. Neglect the mass of the plate. v = 5 m/s P k = 25 kN/m- A h = 2m 600 mm
The small 0.5-kg block slides with a small amount of friction on the circular path of radius r = 3.1 m in the vertical plane. If the speed of the block is 5.6 m/s as it passes point A and 3.9 m/s as it passes point B, determine the normal force exerted on the block by the surface at each of these two locations. Assume 8 = 39º. Answers: NA = B NB = i i A N !N

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