Question on center of gravity

Reference no: EM133613

Question1

The large quadriceps muscle in upper leg terminates at its lower end in a tendon attached to upper end of the tibia. The forces on a lower leg when leg is extended are modelled ,where vector T is force of tension in the tendon, vector w is the force of gravity acting on the lower leg, and vector F is the force of gravity acting on the foot. Find vector T while tendon is at an angle of 25.0° with the tibia, assuming that w = 26.0 N, F = 12.0 N, and leg is extended at an angle θ of 40.0° with the vertical. Assume that center of gravity of the lower leg is at its center, and that tendon attaches to the lower leg at a point one fifth of the way down the leg.

Question2

A 20.0-kg block is connected to a 30.0-kg block by a string that passes over a light frictionless pulley. The 30.0-kg block is connected to a spring that has negligible mass and a force constant of 250 N/m. The spring is unstretched while system and the incline is frictionless. The 20.0-kg block is pulled 20.0 cm down the incline (so that the 30.0-kg block is 40.0 cm above the floor) and released from rest. Discover speed of each block as 30.0-kg block is 20.0 cm above floor (that is, when the spring is unstretched)

Reference no: EM133613

Questions Cloud

Distinguish between the terms vision and mission : Distinguish between the terms Vision and Mission Briefly describe Porter's Generic Strategies

Direction of the surface winds : Direction of the surface winds What is the expected composition

The change in the kinetic energy of the system : The change in the kinetic energy of the system

What portion of jet power lost to producing sound : What portion of jet power lost to producing sound Powdered steel is placed in a container

Question on center of gravity : Question on center of gravity Discover speed of each block

Activities offered by kaiser outdoors : the factors that motivate individuals to participate in outdoor recreation, two local outdoor recreation sites, Outdoor recreation is any form of experience followed during leisure time in which an individual engages from choice because of personal ..

Outdoor recreation : Recreation Opportunity Spectrum, contribution of outdoor recreation to the local community, nature-based recreation site, natural environment of the site,

Purchaser satisfaction for its target markets : Recreation Opportunity Spectrum, contribution of outdoor recreation to the local community, nature-based recreation site, natural environment of the site,

Recreation opportunity spectrum : Recreation Opportunity Spectrum as a planning tool, management practices enhance buyer satisfaction with the organization,

User Account

All Pages