A cotton reel of mass m and moment of inertia I is kept at rest on as smooth horizontal surface. The reel has inner and other radius r and R respectively. A horizontal force F starts actings as shown in figure. Find the a. acceleration of the centre of mass of reel. b. angular acceleration of the reel c. net acceleration of point of contact.
5 Amazing Science Projects
A magnetic tape isbeing played on a cassette deck. The tension in the tape applies a torque to the supply reel. Assuming the tension remains constant during play, plot this angular acceleration ith reel radius r as the reel becomes empty. Neglect the moment of inertia of empty reel.
During silk reeling, pupae inside cocoons are killed by
