https://bestpaperhelp.com/wp-content/uploads/2020/07/mary-logo2-300x75.png00adminhttps://bestpaperhelp.com/wp-content/uploads/2020/07/mary-logo2-300x75.pngadmin2020-07-09 14:16:182020-07-09 14:16:18what is the force exerted by a rope or string called?
