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A tennis player serves the ball at a speed of 180 km/h. What is this speed in me

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Question: A tennis player serves the ball at a speed of 180 km/h. What is this speed in meters per second? (2023)

Options:

  1. 50 m/s
  2. 45 m/s
  3. 40 m/s
  4. 60 m/s

Correct Answer: 45 m/s

Exam Year: 2023

Solution: 

To convert km/h to m/s, divide by 3.6. Speed in m/s = 180 km/h ÷ 3.6 = 50 m/s.

A tennis player serves the ball at a speed of 180 km/h. What is this speed in me

Practice Questions

Q1
A tennis player serves the ball at a speed of 180 km/h. What is this speed in meters per second? (2023)
  1. 50 m/s
  2. 45 m/s
  3. 40 m/s
  4. 60 m/s

Questions & Step-by-Step Solutions

A tennis player serves the ball at a speed of 180 km/h. What is this speed in meters per second? (2023)
  • Step 1: Understand that we need to convert kilometers per hour (km/h) to meters per second (m/s).
  • Step 2: Know the conversion factor: 1 km/h is equal to 1/3.6 m/s.
  • Step 3: Take the speed of the tennis player, which is 180 km/h.
  • Step 4: Divide 180 by 3.6 to convert it to m/s: 180 ÷ 3.6.
  • Step 5: Calculate the result: 180 ÷ 3.6 = 50.
  • Step 6: Conclude that the speed of the tennis player in meters per second is 50 m/s.
  • Unit Conversion – Understanding how to convert speed from kilometers per hour to meters per second using the conversion factor of 3.6.
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