The path a projectile takes is known as the Trajectory
Trajectory is the curved path that an object follows when it travels in space. It has two components x and y. X shows the range while y shows the height
The odd choice is A person sitting in a chair, not moving
As the name suggests, projectile motion is a type of motion. The person sitting in a chair is not moving and he is in rest so he cannot be taken into motion category.
490 meters
According to second equation of motion
S= vit + ½ gt²
Putting the values
S = 0 + ½ (9.8) (10)
S = 490 meters
The sped is 65m/s
As we know that
Speed = Distance / Time
So putting the values
Speed = 650 / 10
Speed = 65 m/s
The statement is true
A projectile motion is composed of two components. X component is responsible for showing the range and Y component is responsible for the height of the projectile.
The given statement is false
The shape of projectile graph is a parabola, not an ellipse. The equatuion of a projectile gives us two values because it is a quadratic equation so that is why this type of motion gives parabola and not an ellipse.
The vertical component always equals the horizontal component.
The horizontal component of a projectile is X and it is constant which means no force is acting on it whereas y component has a force of gravity so both of these components can never be the same.
During the course of trajectory, the horizontal component of the velocity is constant
The horizontal component of trajectory is the X component. This component does not have any force upon it except the force of friction of earth and object. The friction force is also acting in x axis that is why we can say that during the course of trajectory, the horizontal component of the velocity is constant .
In the simulation above, as the projectile travels upward,its vertical velocity decreases
Whenever an object moves against the force of gravity, it’s acceleration and velocity decreases because the gravitational pull tends the object to stay it on earth surface.
In the simulation above, as the projectile travels downward, the vertical velocity increases
As the body comes towards the earth the gravitational acceleration increases with the rate of 9.8m/s². This acceleration is taken as positive and when the projectile hits the ground it is in its maximum speed.
