In the figure a block slides along a path that is without friction until the block reaches the section of length L = 0.66 m, which begins at height h = 1.1 m, on a ramp of angle = 32°. In that section the coefficient of kinetic friction is 0.410. The block passes through point A with a speed of 8.4 m/s. If the block can reach point B (where the friction ends), what is its speed there, and if it cannot, what is its greatest height above A? Number i 6.46 Unit m/s <

In the figure a block slides along a path that is without friction until the block reaches the section of length L = 0.66 m, which begins at height h = 1.1 m, on a ramp of angle = 32°. In that section the coefficient of kinetic friction is 0.410. The block passes through point A with a speed of 8.4 m/s. If the block can reach point B (where the friction ends), what is its speed there, and if it cannot, what is its greatest height above A? Number i 6.46 Unit m/s <

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

In the figure below, a block slides along a path that is without friction until the block reaches the section of length L = 0.80 m, which begins at height h = 2.0 m on a ramp of angle = 30°. In that section, the coefficient of kinetic friction is 0.55. The block passes through point A with a speed of 8.0 m/s. If the block can reach point B (where the friction ends), what is its speed there, and if it cannot, what is its greatest height above A? m/s BA O Ꮎ
I place a 10 kg box at the top of a ramp that is inclined at 25 degrees. It then slides 8 m down the incline. If the incline has a coefficient of kinetic friction of 0.3, what is the speed of the block after it has completed its 8 m slide?
A 30.0-kg child starting from rest slides down a water slide with a vertical height of 10.0 m. What is the child’s speed (a) halfway down the slide’s vertical distance and (b) three-fourths of the way down? (Neglect friction.)
figure shows an downhill plane with the dimensions as H = 15 m, D = 19 m, and an angle ? = 54.14o. Incline has a coefficient of kinetic friction of μk = 1.90.The block of mass m = 2.8 kg starts at labelled point 1 with an initial speed v1 which slides to the labelled point 2. a) What would be the change in gravitational potential energy of the block as it moves from point 1 to point 2? increases ____ J or decreses by ____ J b) Find change in the mechanical energy of the block when it moves from point 1 to point 2? equal but opposite change, or decreases by _____ J, or increases by ___ J c) speed of the block when it arrives at point 2 is _______ the speed at point 1. greater than less than, or the same as, or none.
A roller coaster starts with a speed of 4.1 m/s at a point 51 m above the bottom of a dip. Neglecting friction, what wil be the speed of the roller coaster at the top of the next slope, which is 30 m above the bottom of the dip? Answer: m/s
Examples 3: Consider a block that is free to slide down a smooth, frictionless plane that is inclined at an angle 0 to the horizontal, as shown in Figure. If the height of the plane is h and the block is released from rest at the top, what will be its speed when it reaches the bottom?
A 5 kg block slides along a track from one level to a higher level, by moving through an intermediate valley. The track is - l = 0,60 frictionless untill the block reaches the higher level. There is a frictional force stops the block in a distance d. The block's initial potential energy is P.E. = 150 joules; the height difference is h = 1.1 m; and the coefficient of kinetic friction is µ = 0.60. Find d=? (Solve by using the energy methods)
5000 kg dump truck has a maximum 400 hp (1 hp= 746 W), and it is moving up on an inclined road witha slope of 15 degrees. If the frictional coefficient on the road is 0.80, what is the max constant speed that thetrucker can maintain on the inclined?
Ski Jump Ramp. You are designing a ski jump ramp for the next Winter Olympics. You need to calculate the vertical height h from the starting gate to the bottom of the ramp. The skiers push off hard with their ski poles at the start, just above the starting gate, so they typically have a speed of 2.0 m/s as they reach the gate. For safety, the skiers should have a speed of no more than 30.0 m/s when they reach the bottom of the ramp. You determine that for an 85.0-kg skier with good form, friction and air resistance will do total work of magnitude 4000 J on him during his run down the slope. What is the maximum height h for which the maximum safe speed will not be exceeded? *Illustrate the situation with complete and correct labels.
You push on a box of 10kg with a force F = (20i −10j )N. It moves on a rough surface (uc = 0.1) over 2 m. The crate is initially stationary. Can you calculate the speed of the crate after 2 m, using the kinetic energy theorem?
14. A block is sent sliding down a frictionless ramp. Its speeds at points A and B are 2.00 m/s and 2.60 m/s, respectively. Point A is higher up the ramp than point B. Next, it is again sent sliding down the ramp, but this time its speed at point A is 4.00 m/s. What then is its speed at point B? (a) 2.5 m/s (b) 4.3 m/s (c) 5.4 m/s (d) 6.1 m/s
= 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?