Sam, whose mass is 72 kg , straps on his skis and starts down a 64 m -high, 20° frictionless slope. A strong headwind exerts a horizontal force of 200 N on him as he skies. Use work and energy to find Sam's speed at the bottom. Express your answer to two significant figures and include the appropriate units.

Sam, whose mass is 72 kg , straps on his skis and starts down a 64 m -high, 20° frictionless slope. A strong headwind exerts a horizontal force of 200 N on him as he skies. Use work and energy to find Sam's speed at the bottom. Express your answer to two significant figures and include the appropriate units.

Name: Review I ConstantsSam, whose mass is 72 kg , straps on his skis andst
Uploaded: 2024-03-20T06:57:25.000Z
Channel: Bartleby
Description: Review I ConstantsSam, whose mass is 72 kg , straps on his skis andstarts down a 64 m -high, 20° frictionless slope. Astrong headwind exerts a horizontal force of 200 Non him as he skies.Use work and energy to find Sam's speed atthe bottom.Express y

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

At Schlitterbahn, a 75.0 kg person rides a 12.0 m high water slide. If dissipative forces do -6250 J on the rider as they go from rest at the top of the ride to the bottom, then what is the speed of the rider at the bottom of the slide? Include a diagram of the situation and indicate the mechanical energy at both the top and at the bottom of the slide.
On an essentially frictionless, horizontal ice rink, a skater moving at 4.3 m/s encounters a rough patch that reduces her speed by 42% due to a friction force that is 24% of her weight. Use the work-energy theorem to find the length of this rough patch.
You are throwing a ball to a friend while taking physics and begin to wonder about work. You know that when you throw, you exert a force of 655 N on the ball (which has mass 1.84 kg), and that you do so for a distance of 0.27 m. If you start the throw from rest, what is the final speed of the ball? When you show your work for this question, you must do the calculations using work and energy for credit. If you use kinematics you will not recieve credit. Your Answer: units Answer
Please use the information in the picture to answer the question: How fast must it have leapt from the water to reach a such a great height and speed. If you stand at the bow where you can reach up to a height of 3m above the water. You can only catch a fish if it is traveling under 8.5m/s when it reaches you. Will you be able to catch the fish? Find the speed of the fish at your location. Hint: use energy conservation.
A 17 g bullet is accelerated in a rifle barrel81.5 cm long to a speed of 846 m/s.Use the work-energy theorem to find theaverage force exerted on the bullet while it isbeing accelerated.Answer in units of N.
How fast would a 30-kg kid need to run in order to have the same kinetic energy as an 8.0-g bullet fired at 400 m/s, in m/s? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.
= 7.50 m. The figure below shows a box with a mass of m = 7.10 kg that starts from rest at point A and slides on a track with negligible friction. Point A is at a height of ha A MET 3.20 m 2.00 m m ha (a) What is the box's speed at point B (in m/s)? m/s What is the box's speed at point C (in m/s)? m/s (b) What is the net work (in J) done by the gravitational force on the box as it moves from point A to point C?
Justin, with a mass of 50 kg, is going down an 8.0-m-high water slide. He starts at rest, and his speed at the bottom is 12 m/s. How much thermal energy is created by friction during his descent? Express your answer with the appropriate units. Eth = μA Value Units ?
Calculate the potential energy, kinetic energy, mechanical energv, velocitv, and height of the coaster at the various locations. No Friction on this Roller Coaster. mass of the roaller coaster car = 85 kg 100 start 95 Let gravity on Earth equal 10 m/s? Bcar bumper D E water F finish A B D E P.E. К.Е. M.E. 5 m/s speed height 80 m Height in meters
C7 17.) A 1 kg block (block A) is released from rest at the top of a 20 m long frictionless ramp that is 7 m high. At the same time, an identical block (block B) is released next to the ramp so that it drops straight down the same 7 m. Find the values for each of the following for the blocks just before they reach ground level. (a) gravitational potential energy Block A ______________ J Block B ______________ J (b) kinetic energy Block A ____________________ J Block B ____________________ J (c) speed Block A ____________________ m/s Block B ____________________ m/s (d) momentum Block A _______________________ kg·m/s Block B _______________________ kg·m/s
This is work and power /work Kinetic energy.can someone please show me the complete solution/ computation for this? With explanation please
Suppose you are biking at a constant speed up a road inclined at 5° above the horizontal. You need to bike up this hill for 200 m in 2 minutes or less. There is an average drag force of 25 N as well. Calculate the minimum amount of power in hp your body must provide in order to make it up this hill in time. Assume 80 kg total mass of yourself and bike and 25% energy efficiency in your body. Define a system and draw energy state diagrams as part of your solution. Draw any necessary FBDs for forces. B