Definition of a Projectile Projectile is any object projected in space with a Cloze (1): JXUwMDJlJXUwMDEzJXUwMDA5JXUwMDAzJXUwMDBjJXUwMDBhJXUwMDFkJXUwMDBk and moves under the influence of Cloze (2): JXUwMDNmJXUwMDE1JXUwMDEzJXUwMDE3JXUwMDFmJXUwMDFkJXUwMDBk alone Enable JavaScript A projectile might be a football, a cricket ball, a baseball or any other object
Values of a Projectile motion Question Suppose that the projectile is launched with velocity vo that makes an angle θo with the x-axis. Choose the correct statement in the following Hint No force on horizontal direction Answers Option 1 ax =0, ay = - g, v0x = v0 Cosθo , v0y = v0 Sinθo Option 2 ax = 0, ay = + g, v0x = v0 Cosθo , v0y = v0 Sinθo Option 3 ax = -g, ay = -0 , v0x = v0 Cosθo , v0y = v0 Sinθo Option 4 ax =0, ay = - g, v0x = v0 Sinθo , v0y = v0 Cosθo Feedback Correct Option Wrong Wrong Wrong Solution Correct Option (Feedback) Wrong (Feedback) Wrong (Feedback) Wrong (Feedback) Question Projectile motion is a two dimensional motion. It can be described by considering rectilinear motions Choose the correct statement Hint Projectile motion consists horizontal and vertical motion Answers Option 1 Horizontal and vertical motions are mutually dependent Horizontal motion is a uniform motion but vertical motion is non uniform vx = vox = vo cos θo , vy = vo sin θo – g t Option 2 Horizontal and vertical motions are independent of each other Horizontal motion is a uniform motion but vertical motion is non uniform vx = vox = vo cos θo , vy = vo sin θo – g t Option 3 Horizontal and vertical motions are independent of each other Horizontal motion is non uniform motion but vertical motion is uniform vx = vox = vo cos θo , vy = vo sin θo – g t Option 4 Horizontal and vertical motions are independent of each other Horizontal motion is a uniform motion but vertical motion is non uniform vx = vox = vo cos θo , vy = vo sin θo + g t Feedback Wrong Correct Option Wrong Wrong Solution Wrong (Feedback) Correct Option (Feedback) Wrong (Feedback) Wrong (Feedback)
Trajectory Question 1 The path of the projectile is called a trajectory and it is a parabola Hint Equation of parabola is y = a x + b x2 True False Feedback True
Some Derivations Question Maximum Height Choose the relevant statements from the following Answers Option 1 Vertical motion is considered here Option 2 At maximum height vertical velocity vy = 0 Option 3 Acceleration a = - g Option 4 Acceleration a = g Option 5 At maximum height horizontal velocity vx = 0 Feedback Solution Correct Correct Correct Incorrect Incorrect Question Time of Flight Choose the relevant statements from the following Answers Option 1 Horizontal motion is considered here Option 2 During flight, the vertical displacement is zero Option 3 Acceleration a = - g Feedback Solution Incorrect Correct Correct Question Horizontal Range Choose the relevant statements from the following Answers Option 1 Horizontal motion is considered here Option 2 Horizontal acceleration a = g Option 3 Maximum range is at θ0 = 45 degree Feedback Solution Correct Incorrect Correct
