a) When standing on one leg, 5/6 of a person's weight is applied at the body's center of mass, as shown in the diagram. The other 1/6 is the mass of the leg on which the person is balancing; therefore, that part of the mass does not affect the torque. If a person's total mass is 95 kg, then what magnitude of force (in Newtons) must the gluteus medius provide to keep the hips level? Assume the distance from M to the pivot is 4 cm and the distance from W to the pivot is 17 cm. Assume all quantities are correct to 2 significant figures. Enter to 2 significant figures M = N b) Calculate the magnitude of the joint reaction force at the pivot. Enter to 2 significant figures J= N c) If the gluteus medius is weak, what effect might that have on the hip when a person stands on one leg?

a) When standing on one leg, 5/6 of a person's weight is applied at the body's center of mass, as shown in the diagram. The other 1/6 is the mass of the leg on which the person is balancing; therefore, that part of the mass does not affect the torque. If a person's total mass is 95 kg, then what magnitude of force (in Newtons) must the gluteus medius provide to keep the hips level? Assume the distance from M to the pivot is 4 cm and the distance from W to the pivot is 17 cm. Assume all quantities are correct to 2 significant figures. Enter to 2 significant figures M = N b) Calculate the magnitude of the joint reaction force at the pivot. Enter to 2 significant figures J= N c) If the gluteus medius is weak, what effect might that have on the hip when a person stands on one leg?

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

Based on the newton's second low of motion, the mass is the force applied on a system Ture O False O
The spring in the scale operates such that for each 4.5 lbf applied, the spring elongates one inch. If local acceleration of gravity is 32.2 ft/s', what distance, in inches, did the spring elongate if a 15-lb object was placed on it?
If the resultant of the parallel force system is 800 lbs downward, what is the value of P (in Ibs)? 2ft 4ft 3ft 300 Ibs 200 lbs
Consider the robotic arm shown below, made up of individual arms AB and BC. The weight of the arms AB and BC are each 160 N, and the resultant weight force is shown to act through each arm's center of gravity as shown. You may assume that the center of gravity is occurring along the midpoint of each arm's length. The robotic arm is picking up a package that weighs 40 N, and the 40 N weight force acts through the package's center of gravity at the location shown. COA 600 mm d) 160 N Bo 40° 600 mm 160 N 150 mm 20⁰ 40 N solve the following engineering physics problems with detailed explanations of every step. a) A servomotor at point B is exerting a torque value to resist the rotation induced by the weight force of the robotic arm BC and the weight force of the 40 N package. Calculate the required torque at point B necessary to resist the moment caused by the robotic arm BC and the 40 N package. Indicate the direction of the required torque ( or U). Report your answer in N-m. b) A…
Consider the robotic arm shown below, made up of individual arms AB and BC. The weight of the arms AB and BC are each 160 N, and the resultant weight force is shown to act through each arm's center of gravity as shown. You may assume that the center of gravity is occurring along the midpoint of each arm's length. The robotic arm is picking up a package that weighs 40 N, and the 40 N weight force acts through the package's center of gravity at the location shown. ०८ b) 600 mm 160 N Bo 40° -600 mm 160 N 150 mm 20⁰ 40 N solve the following engineering physics problems with detailed explanations of every step. a) Consider the robotic arm AB. Calculate the moment arm of the individual arm's weight force with respect to the robotic arm's shoulder at point A. Report your answer in mm. Consider the robotic arm BC. Calculate the moment arm of the individual arm's weight force with respect to the robotic arm's shoulder at point A. Report your answer in mm. c) Consider the 40 N package. Calculate…
THERMODYNAMICS Prob 1. A piston weighs 4.3 kgs and has a cross sectional area of 450 mm2. Determine the pressure that is exerted by this piston on the gas in the chamber, as shown in the figure. Assume gravitational acceleration 'g' to be 9.81 m/sec?. Piston Gas Prob 2. Find the mass of air in a closed chamber measuring 35 ft x 20 ft x 10 ft, when the pressure is 17 Ib/in? and the temperature is 75°F. Assume air to be an ideal gas.
The horizontal component of Force F1 (unit is in N), H1= The vertical component of Force F1 (unit is in N), V1 = The horizontal component of Force F2 (unit is in N), H2= The vertical component of Force F2 (unit is in N), V2 = The horizontal component of Force F3 (unit is in N), H3= The vertical component of Force F3 (unit is in N), V3 = The vertical component of Force F4 (unit is in N), V4 = The horizontal component of Force F5 (unit is in N), H5= The vertical component of Force F5 (unit is in N), V5 = The horizontal component of Force F6 (unit is in N), H6= The vertical component of Force F6 (unit is in N), V6 = The sum of horizontal force component for the given system (unit is in N),begin inline style sum for H of end style = The sum of vertical force component for the given system (unit is in N),begin inline style sum for V of end style = The resultant of the given force system is (unit in N), R = The direction of Resultant Force is = Short Answer question
Find the magnitude of force if a body of 12 kg is accelerated by 5 m/s2 due to that force.
How do you solve for the resultant forces?
THERMODYNAMICS Prob 1. A piston weighs 4.3 kgs and has a cross sectional area of 450 mm2. Determine the pressure that is exerted by this piston on the gas in the chamber, as shown in the figure. Assume gravitational acceleration 'g' to be 9.81 m/sec2. Piston Gas Prob 2. Find the mass of air in a closed chamber measuring 35 ft x 20 ft x 10 ft, when the pressure is 17 Ib/in? and the temperature is 75°F. Assume air to be an ideal gas.
1) A small steel block and a magnet rest on a horizontal frictionless table. The steel block weighs 0.07N and the magnet is fixed to the table. The force acting on the steel block by the magnet is inversely proportional to the square of the distance between the steel block and the magnet. When the block is 26cm away from the magnet, the force becomes 0.145N. If the block starts its motion from rest at this position, what is the magnitude of the velocity of the block when it is 9.5cm away from the magnet?
The resultant of two forces in a plane is 300 lbs in 120°. If one of the forces is 150 lbs at 20°. What is other?