Catégorie : EDUCATIONAL
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Cyclist Sharp Turn: Friction and Speed Impact
Question: A cyclist speeding at 18 Kmh-1 on a level road takes a sharp turn of radius 3 m without reducing the speed.The coefficient of friction between the tyre and the road is 0.1.Will the cyclist slip while taking the turn? Solution: Cyclist sharp turn Centripetal Force: Centripetal force acts inwards pulling the cyclist towards…
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Optimum and Maximum Speed of Race-car on 15 degree Banked Racetrack
Question: A circular racetrack of radius 300 m is banked at an angle of 15o. If the coefficient of friction between the wheels of a race-car and the road is 0.2 .What is the Solution: Optimum and maximum speed of race car Banked at an angle 0f 15o Optimum speed of the race-car: The horizontal…
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Cricketer’s Ball Throw: Calculating Maximum Height
Question: A cricketer can throw a ball to a maximum horizontal distance of 100 m. How much high above the ground can the cricketer throw the same ball? Solution:Calculating the maximum height of the ball Projectile motion: Maximum horizontal distance(Range): Maximum range is attained when the ball is projected at an angle of 45o with…
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