<h2>Answer 1:
</h2>
<u>
The path a projectile takes is known as the Trajectory
</u>
<h2>
Explanation:
</h2>
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
<h2>Question 2 </h2>
<u>
The odd choice is A person sitting in a chair, not moving</u>
<h2>Explanation:
</h2>
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.
<h2>Question 3
</h2>
<u>490 meters</u>
<h2>Explanation:
</h2>
According to second equation of motion
S= vit + ½ gt²
Putting the values
S = 0 + ½ (9.8) (10)
S = 490 meters
<h2>Question 4 </h2>
<u>The sped is 65m/s
</u>
<h2>Explanation:
</h2>
As we know that
Speed = Distance / Time
So putting the values
Speed = 650 / 10
Speed = 65 m/s
<h2>Answer 5:</h2>
<u>The statement is true
</u>
<h2>Explanation:
</h2>
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.
<h2>Answer 6</h2>
<u>The given statement is false
</u>
<h2>Explanation:
</h2>
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.
<h2>Answer 7:</h2>
<u>The vertical component always equals the horizontal component.
</u>
<h2>Explanation:
</h2>
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.
<h2>Answer 8: </h2>
<u>During the course of trajectory, the horizontal component of the velocity is constant
</u>
<h2>Explanation:
</h2>
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
.
<h2>Answer 9
</h2>
<u>
In the simulation above, as the projectile travels upward,its vertical velocity decreases
</u>
<h2>Explanation:
</h2>
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.
<h2>Answer :10
</h2>
<u>
In the simulation above, as the projectile travels downward, the vertical velocity increases
</u>
<h2>Explanation:
</h2>
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.
