Biomechanics ch11 UPDATED ACTUAL Questions and CORRECT Answers

Biomechanics ch11 UPDATED ACTUAL Questions and
CORRECT Answers
1. An angle formed by a body segment with respect to absolute angle
horizontal is what?
A. relative angle
B. absolute angle
C. acute angle
D. none of the above

2. if all other factors are held constant, what effect would decrease
"choking up" on a bat have o the resultant linear veloc-
ity of a hit ball
A. increase
B. decrease
C. remain the same
D. need more information

3. if angular acceleration is constant, then angular veloc- increasing or decreasing
ity must be
A.
constant
B.
increasing or decreasing
C.
equal to zero
D.
none of the above

4. the component of angular acceleration directed to- radial acceleration
ward the center of curvature defines what?
A.
radial acceleration
B.
tangential acceleration



, Biomechanics ch11 UPDATED ACTUAL Questions and
CORRECT Answers
C.
angular acceleration
D.
linear acceleration

5. what quantity will have the following units? rad/s angular velocity
A.
linear displacement
B.
angular displacement
C.
linear velocity
D.
angular velocity

6. if the angular velocity of a batters shoulder increases, increase
what will happen to the linear velocity of the end of the
bat?
A.
increase
B.
decrease
C.
stay the same
D.
end of the bat has no linear velocity

7. which of the following terms describes the location of instant center
the center of rotation at a join at a given instant in
time?
A.
precise center