What would happen if the earth's rotation was faster or slower?

Our weight would be reduced because the Earth would rotate faster, exerting more centrifugal force on us; the resultant force of the Earth's gravity and the centrifugal force would be less as gravity would remain constant but centrifugal force would increase; there would also be a temperature change as each hemisphere (Eastern and Western) would get less time to warm up from the Sun's rays. If it rotated faster, one full rotation would take less than 24 hours, shortening the days and nights.

Our weight would increase because the Earth would rotate more slowly, exerting less centrifugal force on us; the resultant force of the Earth's gravity and the centrifugal force would be greater as gravity would remain constant but centrifugal force would decrease; there would also be a temperature change because each hemisphere (Eastern and Western) would have more time to warm up from the Sun's rays. If it were slower, one full rotation would take more than 24 hours, lengthening days and nights.

The Earth's rotation speed can also affect ocean currents, atmospheric circulation, and the distribution of heat across the planet. A faster rotation would result in shorter days, which could have an impact on weather patterns, ecosystems, and human activities. A slower rotation would likely result in longer days, which could change climate zones and potentially affect biological rhythms and human behavior.