Question

(1 point) A body of mass 10 kg moves in the xy-plane in a counterclockwise circular path of radius 3 meters centered at the origin, making one revolution every 11 seconds. At the time t 0, the body is at the rightmost point of the circle. A. Compute the centripetal force acting on the body at time t. B. Compute the magnitude of that force. HINT. Start with finding the angular velocity o [rad/s] of the body (the rate of change of its polar angle w.r.t. the center of rotation). Then find the position vector r (t) of the body at time t. Then find its acceleration vector a (t) at time t. Then use Newton's 2nd law to find the centripetal force F (t) (1 point) A particle is moving in the plane so that at time t it is at the point x, y, where x-: cos(t3 7), y-: sin(t3 + 7). Find the distance traveled by the particle between timest1 and t2.

Answer 1

Total stance trav 6