Question 1

A car is hauling a 92.7-kg trailer, to which it is connected by a spring. The spring constant is 2280 N/m. The car and the trailer are moving with a constant acceleration of 0.414 m/sz. By how much is the spring stretching? Number n Units v Aspring is compressed by 0.0813 m and is used to launch an object horizontally with a speed of 3.43 m/s. If the object were attached to the spring, at what angular frequency (in rad/s) would it oscillate? Number n Units V A simple pendulum is made from a 0.882-m-Iong string and a small ball attached to its free end. The ball is pulled to one side through a small angle and then released from rest. After the ball is released, how much time elapses before it attains its greatest speed? Number Units V A 2.0 x 10'3-kg house spider is hanging vertically by a thread that has a Young's modulus of 4.6 x 109 N/m2 and a radius of 16 x 10'6 m. Suppose that a 96-kg person is hanging vertically on an aluminum (Young's modulus 6.9 x 1010 N/mz) wire. What is the radius of the wire that would exhibit the same strain as the spider's thread, when the thread is stressed by the full weight of the spider? Number n Units v