L16

Question 1

How many radians in 3.5 rev?

Answer 1

3.5rev x 2 pi

Question 2

How many radians is equal to 369 degrees

Answer 2

369/x = 360/2 pi
:369 (2pi)/ 360

Question 3

Centripetal acceleration of the hand of a pitcher as they pitch: 0.4 m long rotating at 4rad/s4

Answer 3

Rad/s = angular velocity = w
Delta at= w squared x radius
Delta at= 4rad/s x 0.4m

Question 4

What is the centripetal accel of the pitchers hand when their arm is 0.4m long and the tangential velocity is 0.74m/s

Answer 4

Vt= 0.74m/s
Radius= 0.4m
Ac= Vt squared/ radius

Question 5

Walking and running biomechanics are similar but vary in terms of:

Answer 5

Range of motion of joint angles and
Temporal phasing (timing differences)

Question 6

Individuals with Parkinson’s disease exhibit small

Answer 6

Quick steps and less ROM

Question 7

Individuals with cerebral palsy and tight hip flexors report limited

Answer 7

Hip extension during stance phase
-causes increased pelvic anterior tilt