September 2018 1 12 Report

1) Jaką siłą nalezy działać na cialo o masie 8 kg poruszajaca sie z predkoscią 2m/s aby w czasie 5s zwiekszyć jego prędkosc do 15 m/s?

2) Ile wynosi siła, która działa na ciało o masie 3kg poruszająca się z przyspieszeniem 3 m/s?

3) Na ciało o masie 2kg działa siła o wartości 5N. Jaką drogę przejedzie to ciało w czasie 5s od początku ruchu? Tarcie pomijamy.

4)Ciało porusza się z przyspieszeniem 5m/s2 (2 czyli chodzi o do kwadratu!)

pod działaniem siły o wartosci 3N. Ile wynosi masa ciała?

5) Jaką siłą nalezy działać na cialo o masie 80kg poruszajce sie z predkoscią 20m/s aby w czasie 10s zmniejszyc jego predkość do 5m/s?

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