![]() (b) Since centripetal force remains constant, the radius of curvature is doubled. As a result, velocity needs to decrease to maintain radius of the curvature. This means the centripetal force acting on the car during its bend is reduced. (a) During wet weather, the kinetic friction between a car's tyres and the ground is reduced. (d) Does the mass of the space station influence the rotation speed required to simulate gravity? Justify your answer. (c) To maintain ‘gravity’, does the space station’s rotation speed need to change if its radius changes? Explain your answer. (b) Describe the effect of the space station’s rotation speed on the magnitude of centripetal force. (a) Explain how the rotating space station simulates gravity. The diagram shows a futuristic space station designed to simulate gravity in a weightless environment. If the mass of the motorcycle is 0.25 m, what would be different about the centripetal force acting on the motorcycle compared to that on the car? (c) A motor cyclist rounds the same bend at velocity 2 v. (b) Assuming the friction between the tyres and the road does not change, describe the path of a car with mass 2m when it rounds the bend at velocity v? (a) Why are drivers advised to slow down during wet weather, specifically when they are making a bend. The car has mass m and is travelling at a velocity v. If centripetal force decreases, velocity needs to decrease to maintain the radius of circular motion, otherwise the object spirals outwards to reach a new circular path with larger radius.Ī car rounds a bend on a road that follows the arc of a circle with radius r.If centripetal force increases, velocity needs to increase in order to maintain the radius of circular motion, otherwise the object spirals inwards to reach a new circular path with smaller radius.Conversely, changes in centripetal force can impact velocity and radius.A stronger centripetal force is required to maintain an object’s uniform circular motion if:Ĭentripetal force required to maintain circular motion.Centripetal force is inversely proportional to:.Tangential velocity of the object squared.Mass of the object undergoing circular motion. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |