Physics-
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Question

A car is going at a speed of 6 m/s when it encounters a 15 m slope of angle  . The friction coefficient between the road and tyre is 0.5. The driver applies the brakes. The minimum speed of car with which it can reach the bottom is open parentheses straight g equals 10 straight m divided by straight s squared close parentheses

  1. 4 m/s    
  2. 3 m/s    
  3. 7.49 m/s    
  4. 8.45 m/s    

The correct answers are: 7.49 m/s, 8.45 m/s

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