As shown in the figure below, a 2.25 kg block is released from rest on a ramp of height h. rough patch mmmm 15.0 cm When the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 15.0 cm that has a coefficient of kinetic friction μ = 0.510. Find h (in m) such that the block's speed after crossing the rough patch is 2.90 m/s. (Enter a number.)

As shown in the figure below, a 2.25 kg block is released from rest on a ramp of height h. rough patch mmmm 15.0 cm When the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 15.0 cm that has a coefficient of kinetic friction μ = 0.510. Find h (in m) such that the block's speed after crossing the rough patch is 2.90 m/s. (Enter a number.)

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter8: Conservation Of Energy

Section: Chapter Questions

Problem 8.34P: An electric scooter has a battery capable of supplying 120 Wh of energy. If friction forces and...

See similar textbooks

Similar questions

Two blocks, A and B (with mass 50.0 kg and 1.00 102 kg, respectively), are connected by a string, as shown in Figure P5.86. The pulley is frictionless and of negligible mass. The coefficient of kinetic friction between block A and the incline is k = 0.250. Determine the change in the kinetic energy of block A as it moves from to , a distance of 20.0 m up the incline (and block B drops downward a distance of 20.0 m) if the system starts from rest. Figure P5.86
An athlete jumping vertically on a trampoline leaves the surface with a velocity of 8.5 m/s upward. What maximum height does she reach? (a) 13 m (b) 2.3 m (c) 3.7 m (d) 0.27 m (e) The answer cant be determined because the mass of the athlete isnt given.
Assume that the force of a bow on an arrow behaves like the spring force. In aiming the arrow, an archer pulls the bow back 50 cm and holds it in position with a force of 150 N. If the mass of the arrow is 50 g and the “spring” is massless, what is the speed of the arrow immediately after it leaves the bow?
An electric scooter has a battery capable of supplying 120 Wh of energy. If friction forces and other losses account for 60.0% of the energy usage, what altitude change can a rider achieve when driving in hilly ter-rain if the rider and scooter have a combined weight of 890 N?
In the figure, a 4.3 kg block slides along a track from one level to a higher level after passing through an intermediate valley. The track is frictionless until the block reaches the higher level. There a frictional force stops the block in a distance d. The block's initial speed is vo -7.1 m/s, the height difference is h 1.0 m, and -0.559. Find d. Number 3.706509438 Units μ=0-
a mother and her child are skiing together, and the mother is holding the end of a rope tied to the child's waist. They are moving at a speed of 7.2 kph on a gently sloping portion of the ski slope when the morher observes that they are approaching a steep descrnt. She pulls on the rope with an average force of 15 N. Knowing the coefficient of frivtion between the mother and the ground is 0.2, the mass of the mother is 62 kg and the angle of the rope does not change, determine the acceleration of the mother, the time reuired dor the mother's speed to be cut in half, and the distance traveled.
As shown in the figure below, a 2.25 kg block is released from rest on a ramp of height h. rough patch. mummy 15.0 cm When the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 15.0 cm that has a coefficient of kinetic friction k = 0.710. Find h (in m) such that the block's speed after crossing the rough patch is 3.20 m/s. (Enter a number.) m t
A box weighing 3.9 kg is initially at rest on a horizontal floor. It is then pushed in a straight line for 1.2 m by a girl exerting a horizontal force with a magnitude 36 N. What is the final speed of the box if there if no friction between the floor and the box? What is the final speed if a coeffient 0.30 would be introduced between the floor and the box?
A 200 g hockey puck is launched up a metal ramp that is inclined at a 30° angle. Thecoefficients of static and kinetic friction between the puck and the ramp are μs = 0.40 andμk = 0.30, and the puck’s initial velocity at the base is 3.8 m/s parallel to the sloping surfaceof the ramp. What speed does the puck have when it slides back down to its starting point?
A 4.0 kg block is initially at rest at a height of H=4.0 m on a ramp. The block then slides down a ramp and encounters a region of friction for Z=3.0 m Finally, stickperson pushes on the block for 4.0 m to bring the block to a stop. With what force did stickperson push to bring the block to a stop? no friction on ramp 3m 'Z' meters of friction region of friction uk = 0.21 no friction during push W
As shown in the figure below, a 2.25 kg block is released from rest on a ramp of height h. rough patch wwwww 15.0 cm When the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 15.0 cm that has a coefficient of kinetic friction μ = 0.590. Find h (in m) such that the block's speed after crossing the rough patch is 3.90 m/s. (Enter a number.) m
A block slides along a track with an initial velocity vo = 7.0 m/s from one level to a higher level after passing through an intermediate valley. The difference h from the initial position to the elevated track is 0.89 m. The track is frictionless until reaches the top. There (at the top), a frictional force stops the block in a distance d. The coefficient of kinetic friction between the block and the surface is 0.60. Find the distance d.