Étiquette : JEE PHYSICS
-
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…
-
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…
-
Determining Maximum Horizontal Distance of a Projectile
Question: The ceiling of a long hall is 25 m high.What is the maximum horizontal distance that a ball thrown with a speed of 40 ms-1 can go without hitting the ceiling of the hall? Solution: Calculating the maximum horizontal distance Projectile motion image: Maximum height of the projectile: Maximum height of a projectile is…
-
Determining the Angle Formed at the Middle of the String in a Pulley-block system
Question: Determine tha angle formed at the middle of the string where a block of mass $${\sqrt2 \ m}$$ is hanging as shown below where the pulleys are smooth and the string used is inextensible. Solution: Free body diagram of the blocks of different masses: Equilibrium at the mid-point: Equilibrium refers to the situation when…
-
Acceleration in Pulley-Block System: Solving for Acceleration with Two Blocks of Different Masses
Question: A pulley with two blocks of different masses are shown below.Find the acceleration in the pulley-block system. Solution: Acceleration in the pulley-block system: Free body Diagram: For 1 Kg block: Force of gravity = m1 g = 1 g Tension in the string = T For 3 Kg block : Force of gravity =…
Vous devez être connecté pour poster un commentaire.