Uma pessoa arrasta um corpo sobre uma superfície horizontal
Uma pessoa arrasta um corpo sobre uma superfície horizontal exercendo, sobre ele, uma força F=10N como mostra a figura:

Sabendo-se que o corpo se desloca de A até B, responda:
a) Qual o valor do ângulo entre a força F e o deslocamento do corpo:
b) Qual foi o trabalho realizado pela pessoa?


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