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Physics, 22.03.2021 22:30 mshields1994

Ukrainian please!! 1.З якою силою має ударити футболіст по мячу , щоб пролетів відстань 100 м ? Маса мяча 500 г, тривалість удару 0,02 с.
2. Швидкість руху автомобіля масою 1,2 т змінюється під час прямолінійного руху за законом v=5+2t . Визначте рівнодійну всіх прикладених до автомобіля сил.
3. Автомобіль масою 4 т , рухаючись зі швидкістю 18 км/год , починає гальмувати і зупиняється , пройшовши 50 м, Визначити силу гальмування .
4. На кульку масою 50 г у напрямку її руху діє постійна сила 150 мН. Запишіть рівняння залежності швидкості руху кульки від часу , якщо її початкова швидкість становила 2 м/с.

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