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A ball is thrown at an angle of 45 degrees with an initial speed of 28 m/s. What

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Question: A ball is thrown at an angle of 45 degrees with an initial speed of 28 m/s. What is the vertical component of the velocity at the peak of its trajectory?

Options:

  1. 0 m/s
  2. 14 m/s
  3. 20 m/s
  4. 28 m/s

Correct Answer: 0 m/s

Solution: 

At the peak, the vertical component of velocity is 0 m/s.

A ball is thrown at an angle of 45 degrees with an initial speed of 28 m/s. What

Practice Questions

Q1
A ball is thrown at an angle of 45 degrees with an initial speed of 28 m/s. What is the vertical component of the velocity at the peak of its trajectory?
  1. 0 m/s
  2. 14 m/s
  3. 20 m/s
  4. 28 m/s

Questions & Step-by-Step Solutions

A ball is thrown at an angle of 45 degrees with an initial speed of 28 m/s. What is the vertical component of the velocity at the peak of its trajectory?
  • Step 1: Understand that when a ball is thrown at an angle, it has two components of velocity: vertical (up and down) and horizontal (side to side).
  • Step 2: Recognize that at the peak of the ball's trajectory (the highest point), the vertical component of the velocity becomes 0 m/s because the ball stops moving upward and is about to start falling down.
  • Step 3: Conclude that regardless of the initial speed or angle, at the peak, the vertical component of the velocity is always 0 m/s.
  • Projectile Motion – Understanding the behavior of objects thrown into the air, including the effects of gravity on vertical and horizontal components of velocity.
  • Velocity Components – Breaking down the initial velocity into horizontal and vertical components using trigonometric functions.
  • Peak of Trajectory – Recognizing that at the highest point of a projectile's path, the vertical component of velocity is zero.
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