A uniform metal ball (mass m) is tied to the end of a string (massless, length L). The other end of the
string is fixed. The ball is moving in a vertical circle centered at the fixed end of the string. Suppose
the velocity of the ball at the lowest point is v, what is the string tension when it makes an angle x to
the downward vertical position?
A small 0.18 kg metal ball is tied to a very light (essentially massless) string that is 0.8 m long. The string is attached to the ceiling so as to form a pendulum. The pendulum is set into motion by releasing it from rest at an
A ball of mass 3.0 kg is tied to the end of a 50-cm length of string. The ball and string are swung in a circle in a vertical plane at constant speed v, which is the minimum speed necessary to keep the string taut at all times.
A ball of mass 1.76 kg is tied to a string of length 4.19 m as shown in Figure P6.50. The ball is initially hanging vertically and is given an initial velocity of 9.4 m/s in the horizontal direction. The ball then follows a
A mass m = 6.0 kg is attached to the lower end of a massless string of length L = 27.0 cm. The upper end of the string is held fixed. Suppose that the mass moves in a circle at constant speed, and that the string makes an angle
A mass m = 6.0 kg is attached to the lower end of a massless string of length L = 73.0 cm. The upper end of the string is held fixed. Suppose that the mass moves in a circle at constant speed, and that the string makes an angle
Two small metal spheres with masses 2.0 g and 4.0 g are tied together by a 5.0 cm long massless string and are at rest on a frictionless surface. Each is charged to +2.0 ìC. (b) What is the tension in the string? (c) The string
A ball is tied to one end of a string. The other end of the string is held fixed. The ball is set moving around a vertical circle without friction, and with speed vi = (Rg)1/2. At what angle from the bottom should the string be