Name:Period:Date:2.A member of the Liechtenstein women's ski team skis in a straight line downhill. As she reaches a velocity of 4.0 m/s sheaccidentally skis onto a sheet of ice, While on the ice she experiences a uniform acceleration of 8.0 m/s' in the direction of hervelocity.A.After traveling 10.0 meters on the ice, what is her velocity?Work:Answer:В.How long after skiing onto the ice will she reach a velocity of 16 m/s?Answer:Work:C.How far does she travel along the ice in 2.5 s?Answer:Work:3. A jet lands on an aircraft carrier traveling at a rate of 63 m/s.А.What is the acceleration of the jet if it comes to a stop in 2.0s?Answer:Work:B. What is the displacement of the plane while it is stopping?Answer:Jork:

Given:- A member of the Liechtenstein women's skis in a straight line downhill. As she reaches a…

Answered: Name: Period: Date: 2. A member of the…

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter5: Energy

Section: Chapter Questions

Problem 79AP: A ski jumper starts from rest 50.0 m above the ground on a frictionless track and flies off the...

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You are playing a game and you push a cart to give it in. speed. The cart starts at the bottom (zero) of a ramp and after reaching the top of the ramp, the cart travels across a horizontal track w/ friction. The mass of the cart is 44 x 10^-3 kg. The ramp is 56 cm high. The length is 70 cm. What can you infer of the intial speed in (m/s)
1. You are conducting an experiment to find the kinetic coefficienct of friction between a 5kg box and a ramp. The ramp has an angle of 25° above the horizontal. You start the box from rest. release it. and let it slide down the ramp. a) If the box starts at a height of 1 meter above the ground. what is the theo- retical value of its velocity at the bottom of the ramp? b) When you do the experiment, you find that the experimental value of the final velocity is 3.5 m/s. How much mechaical energy was “lost”? c) Assume that all of the mechanical energy 'lost' in part b) was due to Friction. Draw a free-body diagram. and determine the magnitude of the Normal Force acting on the box. d) Using the Normal force, determine the co-efficient of friction between the box and the ramp, if the system lost the amount of energy you caculated in part b). Hint: Use the work done by friction.
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2. A 2.0-kg block was released from rest at point A. It then moves through point B until it finally stops at point C. The plane is inclined at an angle 0 of 32.0° from the horizontal and the incline stands at a height h of 3.0 m. The coefficient of kinetic friction from point A to B is 0.40. A h 8.0 m B (a) What is the velocity of the block at point B? (Ans.: 4.6 m) (b) What is the coefficient of friction for the horizontal surface (from point B to C)? (Ans.: 0.13)
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