1. [-/6 Points] DETAILS SERCPWA11 5.WA 201.TUTORIAL. MY NOTES PRACTICE ANOT As shown in the figure below, a box of mass m = 66.0 kg (initially at rest) is pushed a distance d = 79.0 m across a rough warehouse floor by an applied force of FA = 202 N directed at an angle of 30.0 below the horizontal. The coefficient of kinetic friction between the floor and the box is 0.100. Determine the following. (For parts (a) through (d), give your answer to the nearest multiple of 10.) 300 rough surface - d - (a) work done by the applied force (b) work done by the force of gravity W . = (c) work done by the normal force WN = (d) work done by the force of friction WF = (e) Calculate the net work on the box by finding the sum of all the works done by each individual force. W Net (f) Now find the net work by first finding the net force on the box, then finding the work done by this net force. W Net 12 Tutorial Submit Answer MacBook Air DII DD F12 20 888 F7 F8 F9 F10 esc F3 F4 F5 F6 $ % 63. [-I4 Points] DETAILS SERCPWA11 5.WA.019. / x l MY NOTES A warehouse worker is pushing a 90.0 kg crate with a horizontal force of 278 N at a speed of v - 0 845 m/ ' '7 I . 5 across the warehouse floor. H ' ' the coefcient of kinetic friction between the crate and oor is 0.357. e enmunters a rough horizontal sectlon Of the HUD? that IS 0.75 m long and w l A m V Determine the magnitude and direction of the net force acting on the crate while it is pushed over the rough section of the floor. \\ magnitude N l direction W l l' (b) Determine the net work done on the crate while it is pushed over the rough section of the floor. ll:ll (c) Find the speed of the crate when it reaches the end of the rough surface. l i. m/s 4. [-13 Points] SERCPWA1 1 5.WA.01 2. If a projectile with a mass of 8.60 g is traveling at a speed of 1.27 km/s, determine the following. (a) the kinetic energy (in kl) of the projectile in kilojoules film i (b) the kinetic energy (in k)) of the projectil e in kilojoules, if its speed is reduced by a factor of two (c) Find the speed of the crate when it reaches the end of the rough surface. m/s 4. [-/3 Points] DETAILS SERCPWA11 5.WA.012. If a projectile with a mass of 8.60 g is traveling at a speed of 1.27 km/s, determine the following. (a) the kinetic energy (in k]) of the projectile in kilojoules K J (b) the kinetic energy (in k]) of the projectile in kilojoules, if its speed is reduced by a factor of two KJ (c) the kinetic energy (in k]) of the projectile in kilojoules, if its original speed is increased by a factor of three KJ 5. [-/4 Points] DETAILS SERCPWA11 5.WA.026. A force of constant magnitude pushes a box up a vertical surface, as shown in the figure