Answers for 1-3 are given after each question, but can you show me how to get these answers? Thank you.

Name: Period: Date: Review Problems for Work, Power and Energy (1. A frustrated physics student pushes a 25 kg box for 25 meters. The student exerts a continuous, force of 150 3. ) A 5000 g bowling ball is held 350 cm directly above a coil Newtons, parallel to the floor. The coefficient of friction is 0.1 spring. It is thrown downward at 8.0 m/s. a. What is the ball's total initial energy? (tell type(s) a. What is the Work done by the student? and amount) b. What is the Work done by friction? b. The instant before it hits the spring, what it the ball's c. What is the net work done on the box? total energy? (tell type(s) and amount) b. If the box started from rest, what is its ve? c. What is the ball's velocity the instant before it hits the spring? [ 3750 J, -612 J, 3138 J, 15.8 m/s ] d. If it lands directly on the spring and compresses the spring by 15cm, what it the spring's stiffness constant, k? [ gravitational+kinetic, 172J+160=332J; kinetic only, 332J; 11.5 m/s; 29,510 N/m ] 2. /A very long inclined plane has an angle of 150 measured from the horizontal, is 100 meters long, (hypotenuse), and a H=0.05 . A person starts a 10 kg ball rolling down from the top of the hill, by giving it an initial velocity of 5 m/s. a. What is the ball's initial total energy? (identify the type(s) of energy) b. What is the ball's final total energy? (Identify the type(s) of energy) c. What is the ball's velocity at the bottom of the hill? [ gravitational and kinetic, 2539J + 125J = 2664J; kinetic only, but must subtract work done by friction, 2664J 473J =2191 J; 20.9 m/s ]