1. A 20 kg block is resting on a 40 degree incline. If the coefficient of static and kinetic friction are O. 20 and 0. 15 respectively, what minimum force inclined 50 degrees from the horizontal is required to prevent movement? Without said preventive force, what is the velocity of the block after 5 seconds?

1. A 20 kg block is resting on a 40 degree incline. If the coefficient of static and kinetic friction are O. 20 and 0. 15 respectively, what minimum force inclined 50 degrees from the horizontal is required to prevent movement? Without said preventive force, what is the velocity of the block after 5 seconds?

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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Please solve the following practice problems in step by step solutions
the block has is about to be set in motion up in the incline. its impending motion is due to the horizontal force whose magnitude is reflected on the diagram. what is the coefficient of static friction between the surfaces of the block and incline? Note that R is the resultant of all the forces acting on the surface of contact between incline and block.
Q1
2) After playing a game of pinball, you decide to do some calculations on the launching mechanism. The pinball and the plunger have a mass of 0.30 kg and 0.50 kg respectively. The spring coefficient in the pinball machine is 300 N/m. The original length of the spring is 100 mm and the compressed length is 35 mm. If the coefficient of friction between the ball and the surface is 0.15, calculate the velocity of the ball right before it loses contact with the plunger (in m/s). Note that the plunger is never in contact with the ground and assume the ball slides without rolling. [Ans. to check: 1.23 m/s] HO www
5 Find the Jeast value of P that will just start the system of blocks shown moving to the left. The coefficient of friction under each block is 0,25. 300 N 100 N 30°
A skier stands on a 5° slope. If the coefficient of static friction is 0.1, does the skier start to slide down?
2. A 1 KN block upon which a horizontal force of 200N acts is shown in Fig. The coefficient of friction between the plane and block is 0.15. Determine the acceleration of the weight and the time required for it to move 20 m down the plane from an initial velocity of 1 m/s down the plane.
QUESTION 16 A 75-kg bicycist is riding his bike, which has a coefficient of static friction between the tires and the path of 0.7. The path he's riding on has a curve ahead with a radius of 13 m. What is the maximum speed at which he will be able to succesafully take this curve?
PLEASE SHOW COMPLETE FBD AND SOLUTION. PROVIDE EXPLANATION FOR EACH PROCEDURE.
The friction coefficients between the wooden crate and the inclined plane are indicated in the drawing, respectively. Determine (a) the friction force F acting on the crate when force P is 200 N to the block at rest, (b) the force P needed to begin motion up the incline from rest, and (c) the friction force F acting on the block when force P is 600 N.
PLEASE ANSWER NUMBER 2 MECH 221: PLEASE GIVE DETAILED SOLUTIONS AND CORRECT ANSWERS. I WILL REPORT TO BARTLEBY THOSE TUTORS WHO WILL GIVE INCORRECT ANSWERS.