A skydiver has 20853 J of kinetic energy while falling at terminal velocity. After opening the parachute the skydiver only has 696 J of kinetic energy. How much work did the parachute do?

A box of mass 12.0 kg begins at rest, and is accelerated at a rate of 1.5 m/s2 by a force F for 10.0 seconds. What is the work done by the force F?

Your answer is partially correct. The (non-conservative) force propelling a 1.10 x 10-kg car up a mountain road does 7.50 x 106 J of work on the car. The car starts from rest at sea level and has a speed of 26.0 m/s at an altitude of 2.20 x 102 m above sea level. Obtain the work done on the car by the combined forces of friction and air resistance, both of which are non-conservative forces. Number 4757000 Units eTextbook and Media Hint Save for Later Attempts: 4 of 10 used Submit Answer h 77% 74°F Mostly 画 Home End Insert F5 F6 F7 F8 De F9 F10 F1 F12 % Bac 7 8 R Y U | G H J K L VBN M

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A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle forward, the skier accelerates. A 73.5-kg water-skier has an initial speed of 5.2 m/s. Later, the speed increases to 12.2 m/s. Determine the work done by the net external force acting on the skier. W =

A hockey puck of mass 0.26 kg is sliding along a slippery frozen lake, with an initial speed of 64 m/s. The coefficient of friction between the ice and the puck is eventually causes the puck to slide to a stop. Find the work done by friction. J = 0.031. Friction

A 1000-kg car accelerates from 0 to 15 m/s in 5.0 s with negligible friction and air resistance. What is the average power delivered by the engine? 7500 W O 45000 W O 1500 W O 22500 W O 112500 W

A child on a sled is initially at rest on an icy horizontal surface. The sled is pushed until it reaches a final velocity of 6.05 m/s in a distance of 15.6 m. The coefficient of friction between the ice and runners of the sled is 0.200, and the weight of the child and the sled is 375 N. Find the work done by the force pushing the sled.

A 5-kg block slides a distance d = 6 m down a rough incline as in the figure with 0 = 49° and v₁ = 0.71 m/s, reaching a final speed of v2 = 2.03 m/s. How much work was done by friction on the block during the slide? m 01 d W = m 0 _J 02

A student, starting from rest, slides down a water slide. On the way down, a kinetic frictional force (a nonconservative force) acts on her. The student has a mass of 81 kg, and the height of the water slide is 11.8 m. If the kinetic frictional force does -5.1 × 103 J of work, how fast is the student going at the bottom of the slide?