*17-48. The snowmobile has a weight of 250 lb, centeredat Gj, while the rider has a weight of 150 lb, centered at G,.If h = 3 ft, determine the snowmobile's maximumpermissible acceleration a so that its front skid does not liftoff the ground. Also, find the traction (horizontal) force andthe normal reaction under the rear tracks at A.0.5 ft1 ftF1.5 ft-

Given Weight of the rider, Weight of the snowmobile,

Answered: *17-48. The snowmobile has a weight 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

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The 860-kg motorized unit A is designed to raise and lower the 700-kg bucket B of concrete. Determine the average force R which supports unit A during the 6.2 seconds required to slow the descent of the bucket from 3.6 m/s to 1.0 m/s. Analyze the entire system as a unit without finding the tension in the cable. A B Answer: R = i kN
The slotted arm OA rotates about a fixed axis through O. At the instant under consideration, 0 = 37,0 = 44 deg/s, and 0 = 23 deg/s². Determine the magnited of the force F applied by arm OA and the magnitude of the force N applied by the sides of the slot to the 0.5-kg slider B. Neglect all friction, and let L = 0.84 m. The motion occurs in a vertical plane. Answers: F= N= i i -L m N B N 79⁰
During a brake test, the rear-engine car is stopped from an initial speed of 87 km/h in a distance of 46 m. If it is known that all four wheels contribute equally to the braking force, determine the braking force Fat each wheel. Assume a constant deceleration for the 1580-kg car. 46 m V1 = 87 km/h lg = 0 Answer: F = i N
A force of P = 340 N is applied to the 70-kg cart. The mass center of the cart is at G Determine the reaction at both the wheels at A. Determine the reaction at both the wheels at B. What is the acceleration of the cart?
A. If h=3ft, determine the snowmobile’s maximum permissible acceleration aa so that its front skid does not lift off the ground. B. Find the traction (horizontal) force under the rear track at A. C. Find the normal reaction under the rear track at A.
The uniform slender bar has a mass of 7 kg. If the spring is unstretched when Ⓒ = 0º, determine the magnitude of the reaction force exerted on the bar by pin A when = 45°, if at this instant w = 7 rad/s. The spring stiffness is k = 150 N/m. A 800 mm k = 150 N/m B
A man pushes the lawn mower at a steady speed with aforce P that is parallel to the incline. The mass of themower with attached grass bag is 50 kg with mass centerat G. If  = 15°, determine the normal forces NB and NCunder each pair of wheels B and C. Neglect friction. (useg = 9.81 m/s2)
2. The car, having a mass of 1000 kg, is traveling horizontally along a 20° banked track which is circular and has a radius of curvature of p = 100 m. If the coefficient of static friction between the tires and the road is us = 0.3, determine the minimum and maximum constant speed at which the car can travel without sliding down and up the slope. Neglect the size of the car. e= 20°
Determine the tension Pin the cable which will give the 143-lb block a steady acceleration of 6.1 ft/sec? up the incline. 23° 143 lb He = 0.40 %3D 30° Answer: P = i Ib

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