a box resting on the table has a mass of 0.5 kg. what is its weight? and what will be its acceleration when an unbalanced horizontal of 40 newtons acts on it?
Answers
Answer:Newton's First Law of Motion states that a body at rest will remain at rest unless an outside force acts on it, and a body in motion at a constant velocity will remain in motion in a straight line unless acted upon by an outside force.
If a body experiences an acceleration ( or deceleration) or a change in direction of motion, it must have an outside force acting on it. Outside forces are sometimes called net forces or unbalanced forces.
The property that a body has that resists motion if at rest, or resists speeding or slowing up, if in motion, is called inertia. Inertia is proportional to a body's mass, or the amount of matter that a body has. The more mass a body has, the more inertia it has.
Answer:
weight = 0.5*9.8 = 4.9 Kg
acc = F/m = 40/0.5 = 80m/s2