A ball rolls without slipping down the ramp which is in inclined plane at an angle thita show that the ball accelration and magnitude of friction force on the ball is alpha =5/7gsinx, f=2/7mgsinx

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.

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