Questions and Answers
A baseball is thrown upwards from the ground at an angle of 60° to the horizontal with an initial velocity of 25 m/s. What is the horizontal component of the velocity?
12.5 m/s
A particle is projected upwards from the ground with an initial velocity of 20 m/s at an angle of 45° to the horizontal. Find the vertical component of the velocity.
14.14 m/s
Under what conditions does an object follow a parabolic trajectory?
When an object is projected under gravity, neglecting air resistance, with an initial velocity at an angle to the horizontal.
What is the acceleration of an object in free fall?
Signup and view all the answers
A stone is thrown horizontally from a cliff with an initial velocity of 15 m/s. What is the acceleration of the stone?
Signup and view all the answers
Study Notes
Projectile Motion
- Projectile motion involves the motion of objects under the influence of gravity, with no air resistance.
- There are three types of projectile problems:
Free Fall
- Free fall is a type of projectile motion where the object falls vertically downwards, with an acceleration of 9.8 m/s².
- The only force acting on the object is gravity.
Horizontal Projectile at an Angle
- In a horizontal projectile at an angle, the object is projected at an angle to the horizontal.
- The motion can be resolved into two components: horizontal and vertical.
Components of Projectile Motion
- The horizontal component of motion is unaffected by gravity, moving at a constant velocity.
- The vertical component of motion is affected by gravity, accelerating downward at 9.8 m/s².
Trajectory
- The trajectory of a projectile is the path it follows under the influence of gravity.
- The trajectory of a projectile is a parabola, which can be affected by the angle of projection and the initial velocity.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
