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PROJECTILE MOTION DEFINATION Projectile motion is a form of motion in which an object or particle (called a projectile) is thrown near the earth's surface, and it moves along a curved path under the action of gravity only. The only force of significance that acts on the object is gravity, which acts downward to cause a downward acceleration. VERTICAL PROJECTION: The motion of the trajectory in which it is thrown upward (at 90 Degrees) and covers 0 range and is under the influence of only gravity. The height of the projectile can be calculated by: The range of the projectile can be calculated by: The time of flight: Calculating initial velocity in x and y components: U Sin Angle

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### Transcript of Projectile Motion

PROJECTILE MOTION DEFINATIONProjectile motion is a form of motion in which an object or particle (called a projectile) is thrown near the earth's surface, and it moves along a curved path under the action of gravity only. The only force of significance that acts on the object is gravity, which acts downward to cause a downward acceleration. VERTICAL PROJECTION:The motion of the trajectory in which it is thrown upward (at 90 Degrees) and covers 0 range and is under the influence of only gravity.

The height of the projectile can be calculated by:

The range of the projectile can be calculated by:

The time of flight:

Calculating initial velocity in x and y components: U Sin Angle

AngleU Cos angleON X COMPONENT: Velocity is constant. Acceleration is zero Equal distance is covered in equal intervals of time.

ON Y COMPONENT: Velocity is reducing The acceleration is constant -9.81 m/s2

Some awful conditions:The cannon ball is fired from a cliff with initial velocity of 100 m/s under the influence of gravity. The cliff is approximately 15 m high and air resistance is negotiable. 1. Calculate the range, maximum height and time period when the angle at which the cannon is fired is at 0 degree to the horizontal axis.2. Calculate the range, maximum height and time period when the angle at which the cannon is fired is at 33 degree to the horizontal axis.3. Calculate the range, maximum height and time period when the angle at which the cannon is fired is at 90 degree to the horizontal axis.

Toolbox method: