GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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20m/s
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5m/s
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1m/s
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50m/s
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Detailed explanation-1: -Problem: What is the speed of a ball that moves to about 10 meters in 2 seconds? Answer: The speed of the ball is 5 m/s. So, option B. 5 m/s is the correct answer.
Detailed explanation-2: -AI Recommended Answer: 2. Add time (2 seconds). 3. Divide the result by 2 to get the speed in m/s: 20 m/s.
Detailed explanation-3: -Distance travelled at speed of 10m/s for 2 seconds is 20m. Distance travelled at speed of 15m/s for 3 seconds is 45m. Total distance travelled is 65 meters for combined 5 secs time. Therefore this speed is 65/5 m/s = 13m/s.
Detailed explanation-4: -What is a speed of an object that travels 20 meters in 2 seconds? If it travels 20m in 2 seconds, then it will travel half of that in half the time, so 10m in 1 second. We say this as 10m per second or 10m/s, and that’s your speed.