HW3
Question 1 (1 point)
1
A runner completes three laps of a perfectly circular 400 m track in 3 minutes and 28
seconds. What was the runner's average speed throughout the race?
Question 1 options:
121.95 m/s
3.59 m/s
83 200 m/s
5.77 m/s
0 m/s
Question 2

KINS 1151
Biomechanics I
Lecture 5:
Force
Overview
Newtons Laws of
Motion
Friction
Conservation of
Linear Momentum
Lecture
5
Force and
Friction
Force
A force is an influence on a body,
producing a change in movement or in
shape.
Forces tend to cause the b

KINS 1151
Biomechanics I
Lecture 9:
Moments of Force
Overview
Moments of Force (scalar
explanation)
Moments of Force (vector
explanation)
Angular Analogs of Newtons
Laws
Lecture
9
Moments of Force
In learning about moments for the first time, it is easies

KINS 1151
Biomechanics I
Lecture 6:
The Dot- and Cross-Products
Overvie
w
Dot Product
Cross
Product
Lecture
The 6
Dot- and CrossProducts
Dot Product
The definition of a dot product is given by the
expression:
Equation
6.1
This procedure gives the magnitud

KINS 1151
Biomechanics I
Lecture 4:
Projectile Motion
Overview
Introduction to
Projectiles
Equations of Uniformly
Accelerated Linear
Motion
Example
Problems
Overvie
w
projectile
A bodyprojectedby an external force and continuing in motion by its
own inert

KINS 1151
Biomechanics I
Lecture 3:
Displacement, Velocity,
Acceleration
Overvie
w
Kinematic
Variables
Differentiatio
n
Integratio
n
Overvie
w
Types of Motion
Linear Motion
Uniform motion of all parts of an object in the same direction and at the
same spe

KINS 1151
Biomechanics I
Lecture 8:
Angular Kinematics
Overview
Angular
Measurement
Angular
Displacement,
Velocity, and
Acceleration
Angular-to-Linear
Calculations
Overvie
w
Units of Angular
Measurement
There are three units are typically used to describe

KINS 1151
Biomechanics I
Lecture 2:
Vector Addition
Overview
Vector Addition in Two
Dimensions
Vector Addition in Three
Dimensions
Unit Vector
Notation
Overvie
w
Two vectors, and , may be added to form a third vector, usually called a
resultant.
Two vec

Quiz 4
Question 1 (1 point)
Which of the following statements is/are true?
Question 1 options:
The vertical velocity of a projectile at the apex of its trajectory is always zero.
The horizontal velocity of a projectile at the apex of its trajectory is alw

KINS 1151
Biomechanics I
Lecture 7:
Mechanical Energy
Overview
Revie
w
Impulse-Momentum
Relationship
Kinetic and Potential
Energy
Mechanical Work and
Power
Lecture
7
Mechanical
Energy
Impuls
e
Changes in the
momentum of a system
depend on:
Equation 7.1
1)