Perceived heaviness in the context of Newton’s Second Law: Combined effects of muscle activity and lifting kinematics.

2016 ◽  
Vol 42 (3) ◽  
pp. 363-374 ◽  
Author(s):  
Morgan L. Waddell ◽  
Justin M. Fine ◽  
Aaron D. Likens ◽  
Eric L. Amazeen ◽  
Polemnia G. Amazeen
Keyword(s):  
Muscle Activity ◽  
Second Law ◽  
Combined Effects ◽  
Newton's Second Law ◽  
Lifting Kinematics

Feeling Newton’s Second Law

2019 ◽  
Vol 57 (2) ◽  
pp. 88-90 ◽  
Author(s):  
Vincent P. Coletta ◽  
Josh Bernardin ◽  
Daniel Pascoe ◽  
Anatol Hoemke
Keyword(s):  
Second Law ◽  
Newton's Second Law

Scootin' with Newton: Teaching Newton's Second Law Using Motion

Strategies ◽  
2002 ◽  
Vol 16 (2) ◽  
pp. 7-11
Author(s):  
Deborah A. Stevens-Smith ◽  
Shelley W. Fones
Keyword(s):  
Second Law ◽  
Newton's Second Law

A dynamic method to measure the shear strength of snow

2010 ◽  
Vol 56 (196) ◽  
pp. 333-338 ◽  
Author(s):  
Tsutomu Nakamura ◽  
Osamu Abe ◽  
Ryuhei Hashimoto ◽  
Takeshi Ohta
Keyword(s):  
Shear Strength ◽  
Strain Rate ◽  
Reasonable Agreement ◽  
Dynamic Method ◽  
Second Law ◽  
Snow Density ◽  
Newton's Second Law

AbstractA new vibration apparatus for measuring the shear strength of snow has been designed and fabricated. The force applied to a snow block is calculated using Newton’s second law. Results from this apparatus concerning the dependence of the shear strength on snow density, overburden load and strain rate are in reasonable agreement with those obtained from the work of previous researchers. Snow densities ranged from 160 to 320 kg m−3. The overburden load and strain rate ranged from 1.95 × 10−1to 7.79 × 10−1kPa and 2.9 × 10−4to 9.1 × 10−3s−1respectively.

Utilizing the Effort/Motion Approach in the Simulation of Interconnected Rigid Body Systems

1997 ◽  
Author(s):  
N. Duke Perreira
Keyword(s):  
Numerical Simulation ◽  
Rigid Body ◽  
Multibody Systems ◽  
Invariant Form ◽  
Second Law ◽  
Orthogonal Projections ◽  
Gauge Invariant ◽  
Motion Equations ◽  
Newton's Second Law ◽  
Constraint Surface

Abstract The effort/motion approach has been developed for use in designing, simulating and controlling multibody systems. Some aspects of each of these topics are discussed here. In the effort/motion formulation two sets of equations based on the orthogonal projections of a dimensional gauge invariant form of Newton’s Second Law occur. The projections are onto the normal and tangent directions of a dimensional gauge invariant constraint surface. The paper shows how these equations are obtained for a particular linkage with redundant effort and motion actuation. Two alternative Runga-Kutta based approaches for numerical simulation of the effort/motion equations are developed and applied in simulating the motion and determining the effort generated in the example linkage under various conditions. Oscillation about equilibrium positions, solutions with constant motion and with constant effort are given as examples of the approach.

Sign in / Sign up

Export Citation Format

Share Document