The two types of angular motions are radial acceleration and tangential acceleration. What are the two types of angular motion? (2 marks)Īns. The radial acceleration shall be defined as an acceleration of an object that is directed towards the centre in context of the radius of the circle. What is radial acceleration? (2 marks)Īns. What is the acceleration of an object on the surface of the earth (at equator) towards its centre? What is it at latitude 9? How does these accelerations compare with g = 9.8 m/s 2 ? (3 marks) ![]() Any object (or a person) is performing circular motion around the axis of the earth due to the earth rotation (period 1 day). Earth can be thought of as a sphere of radius 6400 km. ![]() Radial Acceleration has the unit that is similar to that of the angular acceleration, that is radian / sec 2. What is the unit of radial acceleration? (2 marks)Īns. As we know whenever an object is performing circular motion, acceleration is called centripetal acceleration and is always directed towards the centre.So cyclist experiences a centripetal force (acceleration) at point R towards centre. The cyclist is in uniform circular motion and it is given that linear velocity = 10 m/s, R = 1 km = 1000 m. According to the problem the path of the cyclist is O-P- R-Q-O. If he maintains a constant speed of 10 ms” 1, what is his acceleration at point R in magnitude and direction? (3 marks)Īns. A cyclist starts from centre O of a circular park of radius 1 km and moves along the path OPRQO as shown in figure. Both acceleration and deceleration refer to the change in the velocity of an object at any unit of time. What is acceleration and deceleration? (2 marks)Īns. Centripetal acceleration is simply another name for radial acceleration which defines the acceleration or movement towards the centre of the circle. What defines centripetal acceleration? (2 marks)Īns. Sample Questions based on Radial Acceleration
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