Which of the following is true regarding the ground reaction force? Group of answer choices pick one answer C. It is an external force D. Internal forces from muscles do not influence the ground reaction force B, C, and D A. It is always equal to mass*9.81 All of the above A, B and C Both B and C B. The resultant ground reaction force is directly proportional to friction

Which of the following is true regarding the ground reaction force? Group of answer choices pick one answer C. It is an external force D. Internal forces from muscles do not influence the ground reaction force B, C, and D A. It is always equal to mass*9.81 All of the above A, B and C Both B and C B. The resultant ground reaction force is directly proportional to friction

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 65P: Consider the baby being weighed in the following figure. (a) What is the mass of the infant and...

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A 525 N block is on a rough, horizontal surface with an applied horizontal force as shown in Figure 1. (a) If a force of 295N is required to start the block in motion, what is the coefficient of static friction, us? (b) If force of 205 N is required to maintain the block at constant velocity, what is the coefficient of kinetic friction, uk?
Also please show the free body diagram of each forces so i can understand how to solve this problem
A push and a pull of magnitude F1=3.9 N and F2=5.8 N act on a block of weight 11 N resting and not moving on a rough surface as shown in the figure linked below. The push F1 is horizontal, while the pull F2 acts at angle θ=46 deg with the horizontal How large is the friction force exerted by the surface on the block?
I was given this problem, and I don't really know what to do about the fact that the normal force doesn't equal the weight for this problem. How am I supposed to find the kinetic friction coefficient now? A box of mass 2,463g is on level ground being pulled by a force of 6.41N at angle 47.2 above horizontal. If the block is moving with a constant velocity, what is the kinetic friction coefficient? (Hint: the normal force does not always equal the weight; it does not in this case.)
Problem 10: Shown to the right is a block of mass m = 11.3 kg sitting on a ramp that makes an angle θ = 26° with the horizontal. This block is being pushed by a horizontal force F = 223 N. The coefficient of kinetic friction between the two surfaces is μ = 0.43. Part (a) Write an equation for the acceleration of the block up the ramp using variables from the problem statement together with g for the acceleration due to gravity. art (b) Find the acceleration of the block up the ramp in m/s2.
In the picture to the right, the bowling ball is replace by a 23.5 N melon. a) What force does the biceps exert to hold the arm steady? b) What is the reaction force at the elbow? Equations: t = Fr^ tccw = tcw Fup = Fdown
Please answer this NEATLY, COMPLETELY, and CORRECTLY for an UPVOTE. P is known to have a value equal to 260 lbs. Determine (a) the value of α so that the resultant of the three forces is to be vertical, and (b) the magnitude of the resultant force. Lastly (c) what are the components of the resultant force when resolved about the w and ν axis?
Solve Prob. 4.125, assuming that the load at C has been removed.(Reference to Problem 4.125):The rigid L-shaped member ABF is supported by a ball-and-socket joint at A and by three cables. For the loading shown, determine the tension in each cable and the reaction at A.
Consider the baby being weighed . (a)What is the mass of the child and basket if a scale reading of55 N is observed? (b) What is the tension T1in the cordattaching the baby to the scale? (c) What is the tension T2inthe cord attaching the scale to the ceiling, if the scale has amass of 0.500 kg? (d) Draw a sketch of the situationindicating the system of interest used to solve each part. Themasses of the cords are negligible
please help me explain why my the frictional force is static and also please draw all the forces acting on the box (free body diagram)
The figure below shows a an Atwood apparatus. Assume the string and the pulley are massless. The mass are m1=9.2 kg and m2=3.4 kg. Determine the tension T1.
A block of volume 600 × 10-6 m3 is held by a string at rest in honey as shown. ρblock = 7401 kg/m3, ρhoney = 1400 kg/m3, and g = 10.0 m/s2. What is the magnitude of the tension force on the block, in Newtons? Your answer needs to have 3 significant figures, including the negative sign in your answer if needed. (No unit is needed in your answer, it is already given in the question statement.)