160j of work was needed in order to move an object 8m acroos a floor what was the force in N that was needed to do this job? i think it may be not sure but 20N dont agree with me just maybe your imput will be different
20N
It takes 160J/8m = 20N Newtons force to do the job.
A force is needed to move an object.
Since the object is moving at a constant speed, the net force on it must be zero.If I'm applying a constant horizontal force, then the frictional force must be equal to my force = 600N and in the opposite direction to my force.
how much force is needed to hold the 2kg object
Work = Force * Displacement. Therefore Force = Work / Displacement = 160 J / 8 m = 20 N (Note that the force and the displacement have to be in the same direction, or else the components of either of them will have to be calculated in the direction of the other)
. The amount of Force needed to make an object change its motion depends on the Mass of the object and the Force required
Yes, force of some kind is always needed to slow an object's movement.
acceleration
an unbalanced force
Friction
The main of force needed tio move an object is the objects mass, f= ma.