Home
Class 11
PHYSICS
Assertion: A projectile that traverses a...

Assertion: A projectile that traverses a parabolic path show deviation from its idealised trajectory in the presence of air resistance.
Reason: Air resistance affect the motion of the projectile.

Text Solution

AI Generated Solution

The correct Answer is:
### Step-by-Step Solution: 1. **Understanding the Assertion**: The assertion states that a projectile that follows a parabolic path will deviate from its ideal trajectory when air resistance is present. In ideal conditions (without air resistance), projectiles follow a parabolic path due to the influence of gravity alone. **Hint**: Recall the conditions for ideal projectile motion and how air resistance alters these conditions. 2. **Understanding the Reason**: The reason provided states that air resistance affects the motion of the projectile. This is true because air resistance introduces an additional force that opposes the motion of the projectile, thus altering its velocity and trajectory. **Hint**: Consider the forces acting on a projectile in real-world conditions versus ideal conditions. 3. **Analyzing the Relationship**: The assertion and reason are closely related. The presence of air resistance (reason) directly impacts the trajectory of the projectile (assertion). When air resistance is considered, the projectile does not follow the ideal parabolic path. **Hint**: Think about how forces interact in motion and how they can change the path of an object. 4. **Conclusion**: Both the assertion and the reason are correct. The assertion accurately describes the effect of air resistance on projectile motion, and the reason correctly explains why this deviation occurs. **Hint**: Summarize the key points that link the assertion and reason together to form a coherent conclusion. ### Final Answer: Both the assertion and the reason are correct, and the reason explains the assertion. Air resistance does affect the motion of the projectile, leading to deviations from the ideal parabolic trajectory.

### Step-by-Step Solution: 1. **Understanding the Assertion**: The assertion states that a projectile that follows a parabolic path will deviate from its ideal trajectory when air resistance is present. In ideal conditions (without air resistance), projectiles follow a parabolic path due to the influence of gravity alone. **Hint**: Recall the conditions for ideal projectile motion and how air resistance alters these conditions. 2. **Understanding the Reason**: The reason provided states that air resistance affects the motion of the projectile. This is true because air resistance introduces an additional force that opposes the motion of the projectile, thus altering its velocity and trajectory. ...
Promotional Banner

Topper's Solved these Questions

  • MOTION IN A PLANE

    NCERT FINGERTIPS ENGLISH|Exercise Scalars And Vectors|5 Videos
  • MOTION IN A PLANE

    NCERT FINGERTIPS ENGLISH|Exercise Addition And Subtraction Of Vectors - Graphical Method|6 Videos
  • MOTION IN A PLANE

    NCERT FINGERTIPS ENGLISH|Exercise EXEMPLER PROBLEMS|9 Videos
  • MECHANICAL PROPERTIES OF SOLIDS

    NCERT FINGERTIPS ENGLISH|Exercise Assertion And Reason|15 Videos
  • MOTION IN A STRAIGHT LINE

    NCERT FINGERTIPS ENGLISH|Exercise NCERT Exemplar|6 Videos

Similar Questions

Explore conceptually related problems

Figure shows the path of a projectile thrown near the surface of earth in the absence of air resistance. If the air resistances is taken into consideration , then

A projectile fired from the ground follows a parabolic path. The speed of the projectile is minimum at the top of its path.

A projectile fired from the ground follows a parabolic path. The speed of the projectile is minimum at the top of its path.

Assertion : Generally the path of a projectile from the earth is parabolic but it is elliptical for projectiles going to very great height. Reason : Up to ordinary height the projectile moves under a uniform gravitational force, but for great heights, projectile moves under a variable force.

Assertion: A particle follows only a parabolic path if acceleration is constant. Reason : In projectile motion path is parabolic, as acceleration is assumed to be constant at low heights.

Assertion :- In projectile motion a particle is projected at some angle from horizontal. At highest point of its path radius of curvature is least. At highest point of path normal acceleration of projectile is equal to acceleration due to gravity.

A projectilie is throw horizontally from the top of a tower on the surface of earth. Identify the trajectory which is not possible assuming no air resistance

The path of a projectile in the absence of air drag is shown in the figure by dotted line. If the air resistance is not ignored then which one of the paths shown in the figure is appropriate for the projectile?

In the following questions a statement of assertion (A) is followed by a statement of reason ( R). A : Horizontal metion of projectile without effect of air is uniform motion. R : Without air effect the horizontal acceleration of projectile is zero .

a projectile is thrown with speed u into air from a point on the horizontal ground at an angle theta with horizontal. If the air exerts a constant horizontal resistive force on the projectill then select correct alternative(s).