*15-48. Blocks A and B have masses of 40 kg and 60 kg,respectively. They are placed on a smooth surface and thespring connected between them is stretched 2 m. If they arereleased from rest, determine the speeds of both blocks theinstant the spring becomes unstretched.k = 180 N/mwwww

Given data: Stretch of the spring, s = 2 m Stiffness of the spring , k = 180 N/m mA = mass of block…

Answered: *15-48. Blocks A and B have masses of…

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

See similar textbooks

Similar questions

The 2.5-lb collar is released from rest at A and slides freely down the inclined rod. If the spring constant k = 2.8 lb/ft and the unstretched length of the spring is 53 in., determine the speed of the collar as it passes point B. 41" 24" A Answer: VB = i 2.5 lb 38" ft/sec
solve this question
r= 0.3 (1 + cos 0) m 500 N/m The 3-kg collar slides along the smooth rod after being nudged from rest at A, and travels along the rod to pass point B. Given that the free length of the spring is 100 mm and that r is the actual length of the spring: Draw Free Body Diagrams for the collar at position A and at position B.
The 4-kg collar C has a velocity of ?? = 2?/? when it is at A. If the guide rod is smooth, draw a free body diagram and determine the speed of the collar when it is at B. The spring has an unstretched length of ?o =0.2?
*15-104. A 4-lb ball B is traveling around in a circle of radius r, = 3 ft with a speed (vg), = 6 ft/s. If the attached cord is pulled down through the hole with a constant speed v, = 2 ft/s, determine how much time is required for the ball to reach a speed of 12 ft/s. How far r, is the ball from the hole when this occurs? Neglect friction and the size of the ball. Bn = 3 ft (UB)1 = 6 ft/s v, = 2 ft/s
2. The 10-Ib block has a speed of 4 ft's when the force of F= (8t?) Ib is applied. Determine the velocity of the block when t= 2 s. The coefficient of kinetic friction at the surface is = 0.2. v = 4 ft/s F= (8°) lb
52
If the coefficient of kinetic friction between the150-lb crate and the ground is uk = 0.2, %3D determine the speed of the crate when t = 4 s. The crate starts from rest and is towed by %3D the 100-lb force. 100 lb 30°
The jet-powered aircraft has a mass of 25 tons and a center of mass at G. If a tow cable is attached to the top of the nose wheel and exerts a force of T = 348 N as shown, determine The acceleration of the plane, in m/s2. Neglect the lift of the wings and the mass of the wheels. 30° T 0.4 m JA + 0.8 m -6 m B& 3 m
5. The 8-kg smooth collar has a speed of 5 m/s when it is at s = 0. Determine the maximum distance s it travels before it stops momentarily. The spring has an unstretched length of 2 m. -1.5 m- -3 m/s k = 100 N/m
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
When 0=60°, the boy's center of mass G has a speed of 10 ft/s as he swings to the right. Determine the rate of increase in his speed and the tension in each of the two supporting cords of the swing at that instant. The boy has a weight of 60 lb. 10 í

Recommended textbooks for you

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Control Systems Engineering

Mechanical Engineering

ISBN:

9781118170519

Author:

Norman S. Nise

Publisher:

WILEY

Mechanics of Materials (MindTap Course List)

Mechanical Engineering

ISBN:

9781337093347

Author:

Barry J. Goodno, James M. Gere

Publisher:

Cengage Learning

Engineering Mechanics: Statics

Mechanical Engineering

ISBN:

9781118807330

Author:

James L. Meriam, L. G. Kraige, J. N. Bolton

Publisher:

WILEY

SEE MORE TEXTBOOKS

*15-48. Blocks A and B have masses of 40 kg and 60 kg, respectively. They are placed on a smooth surface and the spring connected between them is stretched 2 m. If they are released from rest, determine the speeds of both blocks the instant the spring becomes unstretched. k = 180 N/m wwww