div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=example-7-a-mystery-box-m-100-kg-rests-on-a-completely-horizontal-floor-thehtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: lwhittakertahsweeblycomlwhittakertahsweeblycomphysicsforcesexamples7-8solutionspdf · Example 7: A mystery box m = 100 kg rests on a completely horizontal floor The loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentinreader035viewer20220709175fb719a74d27217f262ab352html5thumbnails1jpg width=140 height=200 divdiv