In a ski competition, skiers first slide down a slope of 10 degrees and then encounter a horizontal section. the coefficient of friction along the slope is 0.15 and the horizontal section is frictionless. in order to slow down, a skier with a mass of 80.0kg decides to collide with a stationary cushioned block with a mass of 50.0kg. the skier sticks to the block and they slide together with a final velocity of 5.5 m/s. the skier and block then collide with a spring and it compresses 1.60m.
(a) what is the velocity of the skier before colliding with the block?
(b) determine the length of the ski slope?
(c) what is the spring constant of the spring?
Answers: 1
Another question on Physics
Physics, 21.06.2019 21:00
An electric current in a wire will push or pull on a permanent magnet. which statement best explains how an electric current creates an electromagnetic force on another magnet?
Answers: 2
Physics, 22.06.2019 09:00
What changes occur in the brain during the teenage years? 25 points, someone me out!a.) thinking becomes slower as the brain grows larger. b.) connections between neurons become stronger and faster. c.) unused neurons fuse together to form larger, better functioning neurons. d.) more neurons are developed.
Answers: 2
Physics, 22.06.2019 13:10
A0.750 kg aluminum pan is removed from the stove and plunged into a sink filled with 10.0 kg of water at 293 k. the water temperature quickly rises to 297 k. what was the initial temperature of the aluminum pan? the specific heat of aluminum is ca = 900 j/(kgk) and water is cw = 4190 j/(kgk)
Answers: 3
Physics, 22.06.2019 21:20
Abeverage can is made of 3004-h19 aluminum alloy (elastic modulus 69 gpa, tensile yield strength 285 mpa, density 2.72 g/cm^3). the dimensions on the can are approximated as a thin-walled cylinder with a height of 4.83 inches, diameter of 2.60 inches. empty the can has a mass of 14.2 g. determine: a. the wall thickness of the cylinder b. assuming a pinned-pinned condition what is the critical load? c. assuming a fixed-fixed condition what is the critical load?
Answers: 1
You know the right answer?
In a ski competition, skiers first slide down a slope of 10 degrees and then encounter a horizontal...
Questions
Arts, 11.02.2021 21:30
Geography, 11.02.2021 21:30
Mathematics, 11.02.2021 21:30
English, 11.02.2021 21:30
Mathematics, 11.02.2021 21:30
Mathematics, 11.02.2021 21:30
Mathematics, 11.02.2021 21:30
