Answer to Question #247946 in Physics for Valle

Question

3. A backpack suspenden motionless. A grade 12 student rests a backpack upon his shoulder. The pack is suspended motionless by two straps from his shoulder.Draw the free-body digrams of the forces acting on each.Identify the forces acting on the object.Identify whether the net force is balanced or not balanced.

4. A car slowing down. A car is coasting to the left and slowing down.Draw the free-body digrams of the forces acting on.Identify the forces on the object. Identify whether the net force is balance or not balance.

Answer 1

3. The net force is balanced because the backpack does not move. T is the tension and mg is the force of gravity.

4. The net force is unbalanced because the car is decelerating. f is the force of friction, mg and N are the force of gravity and normal force.