Work on a Sliding BoxA box of mass m is sliding along a horizontal surface.Part AThe box leaves position x = 0 with speed vo. The box is slowed by a constant frictional force until it comes to rest at position x = x1.Find Ff, the magnitude of the average frictional force that acts on the box. (Since you don't know the coefficient of friction, don't include it in your answer.)Express the frictional force in terms of m, vo, and £₁.► View Available Hint(s)F₁ =SubmitPart BAfter the box comes to rest at position ₁, a person starts pushing the box, giving it a speed v1.When the box reaches position 2 (where x2 > ₁), how much work Wp has the person done on the box?Assume that the box reaches 2 after the person has accelerated it from rest to speed v₁.Express the work in terms of m, vo, x1, x2, and v₁.► View Available Hint(s)WpΑΣSubmitVE ΑΣΦ?1 of 22Review | Constants

We will solve this problem using work-energy theorem. We will first write down expression for…

A box of mass m is sliding along a horizontal surface. Y Part A ▾ The box leaves position z=0 with speed up. The box is slowed by a constant frictional force until it comes to rest at position = 21. Find Fr, the magnitude of the average frictional force that acts on the box. (Since you don't know the coefficient of friction, don't include it in your answer.) Express the frictional force in terms of m, vo, and ₁. ▸ View Available Hint(s) Ft = Submit Part B W₂² ΠΙΑΣΦ Submit 4 → After the box comes to rest at position ₁. a person starts pushing the box, giving it a speed v₁. When the box reaches position 2 (where 2 > 1), how much work Wp has the person done on the box? Assume that the box reaches 22 after the person has accelerated it from rest to speed v₁. Express the work in terms of m, vo, 21, 22, and ₁. ▸ View Available Hint(s) VT| ΑΣΦ C → ? ? Review | Constants

A box of mass m is sliding along a horizontal surface. Y Part A ▾ The box leaves position z=0 with speed up. The box is slowed by a constant frictional force until it comes to rest at position = 21. Find Fr, the magnitude of the average frictional force that acts on the box. (Since you don't know the coefficient of friction, don't include it in your answer.) Express the frictional force in terms of m, vo, and ₁. ▸ View Available Hint(s) Ft = Submit Part B W₂² ΠΙΑΣΦ Submit 4 → After the box comes to rest at position ₁. a person starts pushing the box, giving it a speed v₁. When the box reaches position 2 (where 2 > 1), how much work Wp has the person done on the box? Assume that the box reaches 22 after the person has accelerated it from rest to speed v₁. Express the work in terms of m, vo, 21, 22, and ₁. ▸ View Available Hint(s) VT| ΑΣΦ C → ? ? Review | Constants