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Questions and Answers
What is the neglected factor in the flight of a projectile?
What is the neglected factor in the flight of a projectile?
- Wind
- Air resistance (correct)
- Friction
- Gravity
Which of the following is not a sub-topic in Motion in a Curved Path?
Which of the following is not a sub-topic in Motion in a Curved Path?
- Tangential and Normal Components of Acceleration
- Flight of a Projectile
- Uniform Rectilinear Motion
- Kinematics of Rigid Bodies (correct)
What is the course topic that deals with the study of rotation of rigid bodies?
What is the course topic that deals with the study of rotation of rigid bodies?
- Rotation of Rigid Bodies (correct)
- Motion in a Curved Path
- Kinetics of Rigid Bodies
- Kinematics of Rigid Bodies
What is the learning outcome that deals with the factor of safety in design?
What is the learning outcome that deals with the factor of safety in design?
What is the course topic that deals with the study of motion in a curved path?
What is the course topic that deals with the study of motion in a curved path?
What is the learning outcome that deals with the significance of the Strength of Materials?
What is the learning outcome that deals with the significance of the Strength of Materials?
What is the topic that deals with the study of tension members?
What is the topic that deals with the study of tension members?
What is the course topic that deals with the study of plane motion of rigid bodies?
What is the course topic that deals with the study of plane motion of rigid bodies?
What is the definition of a projectile?
What is the definition of a projectile?
What is the shape of the trajectory of a projectile without air resistance?
What is the shape of the trajectory of a projectile without air resistance?
What is the formula for the horizontal component of initial velocity?
What is the formula for the horizontal component of initial velocity?
What is the formula for the vertical velocity of a projectile at any given time t?
What is the formula for the vertical velocity of a projectile at any given time t?
What is the formula for the time of flight of a projectile?
What is the formula for the time of flight of a projectile?
What is the formula for the maximum height of a projectile?
What is the formula for the maximum height of a projectile?
What is the formula for the range of a projectile?
What is the formula for the range of a projectile?
At what angle is the maximum range achieved?
At what angle is the maximum range achieved?
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Study Notes
Dynamics of Rigid Bodies
- Course topics include introduction, uniform rectilinear motion, motion in a curved path, kinetics of rigid bodies, kinematics of rigid bodies, rotation of rigid bodies, and plane motion of rigid bodies.
Motion in a Curved Path
- Subtopics include flight of a projectile and tangential and normal components of acceleration.
Flight of a Projectile
- A projectile is an object thrown into space with only gravity acting on it.
- The trajectory of a projectile is the path it follows, which is a parabola without air resistance.
- Initial velocity (u) is the velocity with which the projectile is launched.
- Horizontal component (ux) is ucosθ, and vertical component (uy) is usinθ.
Formulas
- Vertical velocity (vy) is uy - gâ‹…t.
- Time of flight (T) is 2usinθ​/g.
- Maximum height (H) is u²sin²θ / 2g.
- Range (R) is u²sin²θ / g.
- Maximum range is achieved at an angle of 45°.
Motion Equations
- Horizontal distance (x) is uxâ‹…t.
- Vertical distance (y) is uy⋅t - gt².
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