An elderly person with a body mass of 65 kg is walking while using a cane in one hand. If the upward force that the cane applies to the hand is 117 N and the vertical acceleration of the body center of mass is 1.32 m/s^2, what is the magnitude of the vertical ground reaction force? Assume that only one foot is on the ground and the other leg is in the swing phase
An elderly person with a body mass of 65 kg is walking while using a cane...
As an approximate model of the impact of walking, consider that half of the mass of the body strikes the ground with a downward velocity of 0.538 m/s and comes to a full vertical stop in a time of 22.1 ms. Based on this, calculate the magnitude of the force in Newtons associated with a single step for a person with a mass of 75.7 kg.
Show all work with free body diagrams. 1. While slowly walking, a 55 kg woman places all of her weight.. 1. While slowly walking, a 55 kg woman places all of her weight, W, on one foot, as shown. FB a) Determine the force in the Achilles tendon (Fa) and the corresponding force that the tibia exerts on the talus (Fs) that are required to maintain this position. FA Express both of these forces as a percentage of the woman's...
QUESTION 2 The drawing shows a person mass-59 kg. doing push-ups. Find the force exerted by the floor on each foot, assuming that the person holds this position. Express your answer is Sl units with 3 or more significant figures 0.90 m 1.50 m QUESTION 3 A uniform lunch tray is being held in one hand, as the drawing illustrates. The mass of the tray is 0.11 kg. On the tray is a 1 kg plate of food and a...
Question 25 of 30 > A tightrope walker is walking between two buildings holding a pole with length L = 16.0 m, and mass mp-20.0 kg. The daredevil grips the pole with each hand a distance d = 0.500 m from the center of the pole. A bird of mass m 575 g lands on the very end of the left-hand side of the pole Assuming the daredevil applies upward forces with the left and right hands in a direction...
The femur of a human leg (mass 10 kg, length 0.9 m) is in traction, as shown in the figure. The center of gravity of the leg is one-third of the distance from the pelvis to the bottonm of the foot. Two objects, with masses m and m2, are hung at the ends of the leg using pulleys to provide upward support A third object of 8 kg is hung to provide tension along the leg. The body provides tension...
A person is pushing against a wall while their body is slanted. The wall is made of smooth ice, therefore it has zero friction. The floor, however, is made of rough sandstone and as a result, has coefficients of friction and , both of which are non-zero. Model the person as a uniform one-dimensional rod of mass m and length L. Their body makes an angle relative to the ground as shown. Known: m, L, , , , g Note:...
please guys this is one question with 2 parts. A student sits on a freely rotating stool holding two dumbbells, each of mass 3.05 kg (see figure below). When his arms are extended horizontally (Figure a), the dumbbells are 1.07 m from the axis of rotation and the student rotates with an angular speed of 0.740 rad's. The moment of inertia of the student plus stool is 2.57 kg: m2 and is assumed to be constant. The student pulls the...
Walk. To start walking horizontally, a person must accelerate their body forward using static friction. A person can reach a speed of 2.0 m / s in a distance of 30 cm, starting from rest. Assuming constant acceleration, a) draw a force diagram for the start of the ride. (b) Apply Newton's second law to find the minimum static friction coefficient for the ride described. (c) If you want to walk faster, would you need more or less friction? Why?...
(A). Calculate the impulse imparted to a 70-kg person landing on a firm ground after jumping from a height of 5.0 m. Then estimate the average force exerted on the person's leg if the landing is (b) stiff-legged and (c) with bent legs. in (b) assume the center of mass of the body moves 1.0 cm during impact and in (c), about 50 cm.
The femur of a human leg (mass 10 kg, length 0.9 m) is in traction, as shown in the figure. The center of gravity of the leg is one-third of the distance from the pelvis to the bottom of the foot. Two objects, with masses m1 and m2,are hung at the ends of the leg using pulleys to provide upward support. A third object of 8 kg is hung to provide tension along the leg. The body provides tension as...