Question

Sobre uma partícula M agem quatro forças perpendiculares entre si, conforme representado na figura abaixo.Sabendo que, a massa da partícula é m= 20kg, Calcule a aceleração resultante da partícula  

                                                                           |         15N                                                                                                                      

                                                                           |                                                                                                                                                           

                                            10N _________ |_m________10N                                                                                                                                                                       

                                                                           |

                                                                           |  5N

Answer 1

Karol, é preciso de um sentido das forcas para a resolucao do exercicio.

Se elas estao em sentidos opostos, as forcas horizontais se anulam e as verticas resultam em 10N para cima, portanto FR=m.a  (forca resultante=massa x aceleracao)

10N=20a   -    a=10/20    -     a=1/2 = 0,5m/s2