Question

An object experiences a net non-zero force. Is it possible for the object to move along the straight line with a constant speed?
answer fast please

Answer 1

let the non zero net force as F. As a vector force has a angle of work means direction. that means the object will be moving in one direction as long as the net force F exist. If the net force F change the direction of the moving object can change in maximum cases. let assume the mass of the object as m. Now F = m*a [ a is the acceleration of the object]. or a = F/m. As we can see the object has a acceleration a so it can not be move in constant speed. if a=0 then F=m*0 means F = 0; but there is a force. That means if a object in space has a non zero constant net force acting on it, there is a constant acceleration on the object in the same direction of the net force, means it has a non-constant velocity along the direction of non zero net force.