Q. An 11.70 kg weather rocket generates a thrust of 240 N. The rocket, pointing upward, is clamped to the top of a vertical spring. The bottom of the spring, whose spring steady is 470 N/m, is anchored to the ground.
Q. At a grinding wheel has an angular velocity of 23.0. It has a steady angular acceleration of 33.0 until a circuit breaker trips at time = 1.70. From after that on, it turns through an angle 440 as it coasts to a stop at steady angular acceleration.