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A car's speed is measured as 60 km/h with a possible error of 2 km/h. What is th

Practice Questions

Q1
A car's speed is measured as 60 km/h with a possible error of 2 km/h. What is the minimum speed?
  1. 58 km/h
  2. 60 km/h
  3. 62 km/h
  4. 55 km/h

Questions & Step-by-Step Solutions

A car's speed is measured as 60 km/h with a possible error of 2 km/h. What is the minimum speed?
  • Step 1: Identify the measured speed of the car, which is 60 km/h.
  • Step 2: Identify the possible error in the speed measurement, which is 2 km/h.
  • Step 3: To find the minimum speed, subtract the error from the measured speed.
  • Step 4: Perform the calculation: 60 km/h - 2 km/h = 58 km/h.
  • Step 5: The minimum speed of the car is 58 km/h.
  • Speed Measurement – Understanding how to calculate minimum speed based on a measured speed and its possible error.
  • Error Analysis – Recognizing how to apply error margins to measurements in order to determine possible ranges.
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