Question

You are a member of an alpine rescue team and must get a box of supplies, with mass 2.10 kg , up an incline of constant slope angle 30.0 ∘ so that it reaches a stranded skier who is a vertical distance 2.80 m above the bottom of the incline. There is some friction present; the kinetic coefficient of friction is 6.00×10⁻². Since you can't walk up the incline, you give the box a push that gives it an initial velocity; then the box slides up the incline, slowing down under the forces of friction and gravity. Take acceleration due to gravity to be 9.81 m/s2.

Constants ▼PartA You are a member of an alpine rescue team and must get a box of supplies, with mass 2.10 ㎏ , up an incline of constant slope angle 30.0 so that it reaches a stranded skier who is a vertical distance 2.80 m above the bottom of the incline. There is some Use the work-energy theorem to calculate the minimum speed v that you must give the box at the bottom of the incline so that it will reach the skier Express your answer numerically, in meters per second. friction present; the kinetic coefficient of friction is 6.00x10-2 Since you can't walk up the incline, you give the box a push that gives it an initial velocity; then the box slides up the incline, slowing down under the forces of friction and gravity. Take acceleration due to gravity to be 9.81 m/s View Available Hint(s) 7.63 m/s Submit Previous Answers X Incorrect; Try Again; 3 attempts remaining You are on the right track. Be sure to include the distance over which friction acts when calculating the work done by friction

Answer 1