1. A solid block having a weight of 160 N is placed at a distance of 1.40 m. from the center of the circular platform having a radius of 3 m. If the platform is to be rotated at a speed of 20 rpm. 160...

Extracted text: 1. A solid block having a weight of 160 N is placed at a distance of 1.40 m. from the center of the circular platform having a radius of 3 m. If the platform is to be rotated at a speed of 20 rpm. 160 N Wgr -3 m a. Compute tangential velocity at the end of the platform. b. Determine the minimum coefficient of friction between the block and the platform before the block start to slide. c. Compute the force that prevents the block to slide.