A 60-kg rollerblader holds a 4.0-m-long rope that is loosely tied around a metal pole. You push the rollerblader, exerting a 40-N force on her, which causes her to move increasingly more rapidly in a counterclockwise circle around the pole. Determine the tangential and rotational acceleration of the rollerblader. Assume all friction is negliglble
A 60-kg rollerblader holds a 4.0-m-long rope that is loosely tied around a metal pole. You...
mi Q2) Two masses are attached by a rope; mı-2.00 kg is hanging off the edge of a cliff, and m2-0.500 kg is resting on a flat plateau. a) What minimum coefficient of static friction between mi and the ground is b) If m,-1.00 kg, and μ.-0.200, what are the masses, accelerations? c While accelerating, what is the tension in the string? Q3) Two masses, mi -45.0 kg and m2-125 kg are sliding down a rough surface required to prevent...
A 9.9 kg stone is tied to a 6.2 m long string and swung around a circle at a constant angular velocity 4.9. Calculate the magnitude of the torque about the origin. * A uniform meter stick is placed on and parallel to the x axis, with the 50 cm mark at the origin. It is pivoted at the 50 cm mark. A -6.61 N force is applied at the 13 cm mark, and a -3.02 N force is applied...
The hammer throw is an Olympic event where a 7.5 kg metal ball is attached to a 1.2 m long wire, as shown in the diagram. One such competitor was observed to swing the hammer around in a horizontal circle with an average angular acceleration a = 5.6 rad/s?. After 3 seconds the hammer was released. (a) Calculate the angular velocity and tangential speed of the metal ball just before it is released. (b) Calculate the number of revolutions the...