Answered: A skier of mass m starts from rest at…

A skier of mass m starts from rest at the top of a solid sphere of radius r and slides down its frictionless surface. (a) At what angle 0 (Fig. 8-36) will the skier leave the

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter8: Potential Energy And Conservation Of Energy

Section: Chapter Questions

Problem 60P: A 60.0-kg skier with an initial speed of 12.0 m/s coasts up a 2.50-m high rise as shown. Find her...

See similar textbooks

Related questions

Q: A 3.00-kg ball swings rapidly in a complete vertical circle of radius 2.00 m by a light string that…

A: Answer: The work done on it by gravity is -118J and the work done on it by the tension in the string…

Q: An object of mass m is initially held in place at radial distance r = 3RE from the center of Earth,…

Q: A 12 kg mass slides down an 18-degree incline with μk=0.26. The mass is connected by a massless…

A: Consider the free-body diagram of the mass-pulley-wheel system.

Q: In the figure here, a small, solid, uniform ball is to be shot from point P so that it rolls…

Q: A child’s toy consists of a small wedge that has an acute angle θ (as shown). The sloping side of…

A: Free-body diagram

Q: At amusement parks, there is a popular ride where the floor of a rotating cylindrical room falls…

Q: Estimate the kinetic energy of the Mars with respect to the Sun as the sum of the terms, that due to…

Q: 8-11. A particle moves under the influence of a central force given by F(r) = -k/r". If the…

Q: A cubic block of mass m and side b is placed on a smooth floor. A smooth and rigid rod of length L…

Q: A roller coaster car of mass, m, enters the bottom of a frictionless vertical loop of radius 12.0m…

Q: Two identical wheels are moving on horizontal surfaces. The center of mass of each has the same…

A: Part (a) Let the mr vr and ms vs be the masses and velocities of the sliding and rolling wheel…

Q: A child’s toy consists of a small wedge that has an acute angle θ (Fig.). The sloping side of the…

A: Given information: The mass of the object = m The length at which the mass stays at rest = L The…

Q: At amusement parks, there is a popular ride where the floor of a rotating cylindrical room falls…

Q: The 100 kg sphere A is released from rest at an angle of α from the vertical, and hits the 10 kg…

A: Given data: The mass of sphere m=100 kg. The mass of the block is M=10 kg. The initial velocity of…

Q: Derive an expression for the work required to move an Earth satellite of mass m from a circular…

Q: On an asteroid like Bennu, where NASA just landed a probe on October 20, a pressurized nitrogen…

Q: The 100 kg sphere A is released from rest at an angle of α from the vertical, and hits the 10 kg…

Q: (II) A mallet consists of a uniform cylindrical head of mass 2.30 kg and a diameter 0.0800 m mounted…

A: Given: A mallet consists of a uniform cylindrical head of mass2.30 kg and a diameter 0.0800 m…

Q: -3. ssm The hammer throw is a track-and-field event in which a 7.3 kg ball (the “hammer"), starting…

A: The work done on an object is equal to the change in the object’s energy E = K+U (Kinetic plus…

Q: An Atwood machine has M, = 10.0 kg. M2 = 20.0 kg. The pulley is a flat cylindrical disk with. R =…

Q: ** A pellet gun is fired at a solid disk that is free to rotate about a fixed horizontal axis, as…

Q: A meter stick is held vertically with one end on the floor and is then allowed to fall. Find the…

Q: object shown in Figure 8-72 is made from two solid disks: m1=23kg, m2 = 39kg, r1 = 17cm, and…

A: As per conservation of energy (TE)initial = (TE)final

Q: A pellet gun is fired at a solid disk that is free to rotate about a fixed horizontal axis, as shown…

Q: A hollow cylinder and solid cylinder, with the same radius, are placed at the top of an incline and…

Q: 78 At a certain factory, 300 kg crates are dropped vertically from a packing machine onto a conveyor…

Q: 11. T or F Specific mechanical energy is constant for a given orbit and only depends upon the size…

A: Specific mechanical energy of an object is defined as the mechanical energy of an object per unit…

Q: In three trials, a block is pushed by a horizontal applied force across a floor that is not…

A: The change in thermal energy of the block and floor is the same as the work done (Wf) by the…

Q: •29 ILW In the instant of Fig. 11-41, POTD two particles move in an xy plane. Particle P, has mass…

Q: In the figure, two boxes, each of mass 24 kg, are at rest and connected as shown. The coefficient…

A: Let the right block move down and left block move up the incline with an acceleration a. Let T be…

Q: (II) A uniform disk turns at 3.3 rev/s around a frictionless central axis. A nonrotating rod, of the…

A: Given: Number of revolutions = 3.3 rev/s

Q: 7. A 5.00-kg solid ball of radius 0.250 meters is pressed back against a spring having a spring…

A: Apply the conservation of energy between the launch position and the start of the inclination.

Q: 8 In Fig. 8-25, a block slides along a track that descends through distance h. The track is…

Q: At amusement parks, there is a popular ride where the floor of a rotating cylindrical room falls…

A: Required : The minimum safe speed.

Q: pulley m 8-78 Problem 97. - answers in all of the blanks and submit igure 8-78, a rope is wound…

A: Given Mass of disc m = 2.9 kg Radius r = 20 cm = 0.2 m Moment of inertia of disc = (1/2) mr2 =…

Q: A large spool of rope rolls on the ground with the end of the rope lying on the top edge of the…

A: The velocity of centre of mass of spool is given by:vcm=RωAs the person is moving with the end of…

Q: A 12.0 m long uniform beam with a total weight of 840 N is clamped horizontally to the top of a wall…

Q: 1.75 kg wood block is on a horizontal wood surface and a light string attached to the block passes…

Q: A 3.0-kg mass is sliding on a horizontal frictionless surface with a speed of V=3.0 m/s when it…

Concept explainers

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.

Question

(III) A skier of mass m starts from rest at the top of a solid
sphere of radius r and slides down its frictionless surface.
(a) At what angle 0 (Fig. 8–36) will the skier leave the
sphere? (b) If friction were present,
would the skier fly off at a greater or
lesser angle?
FIGURE 8-36
Problem 28.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Given data

VIEW

Step 2: Calculation of the angle at which the skier leaves the surface

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

The lunar module orbits first 110 km above the surface of the Moon at a speed of 1.63 km/h and then it's with a short engine jerk directed towards the Moon. At what speed does it collide with the Moon?
A load of 700 kg falls from a height of 5 m for driving a 300 kg pile. Find the average force of the soil resistance, if as a result of one blow the pile enters the soil to a depth of 4 cm. Consider the collision between the load and the pile as absolutely inelastic.
Apollo 14 astronaut Alan Shepard famously took two golfshots on the Moon where it’s been estimated that an expertlyhit shot could travel for 70.0 s through the Moon’s reducedgravity, airless environment to a maximum range of 4.00 km(about 2.5 miles). Assuming such an expert shot has a launchangle of 45.0°, determine the golf ball’s (a) kinetic energy asit leaves the club, and (b) maximum altitude in km above thelunar surface. Take the mass of a golf ball to be 0.045 0 kg andthe Moon’s gravitational acceleration to be gmoon = 1.63 m/s2.
The coef of friction between the block of mass m1 = 3.0 kg and the surface is 0.400. The system starts from rest. What is the speed of the ball of mass m2 = 5.0 kg when it has fallen a distance of h = 1.50 m.
A 60.0-kg skier with an initial speed of 12.0 m/s coasts up a 2.50-m high rise as shown.Find her final speed at the top, given that the coefficient of friction between her skis andthe snow is 0.80.
Repeat the preceding problem, but including a drag force due to air of fdrag=bv .
At a hydroelectric power plant, water is directed at high speed against turbine blades on an axle that turns an electric generator. For maximum power generation, should the turbine blades be designed that the water is brought to a dead stop, or so the water repounds? Explain
Four point masses are arranged in a square of side length L as shown. All of the masses are in the xy-plane. Mass 2 and Mass 4 have mass of 4.6 kg, and Mass 1 and Mass 3 have a mass of 1 kg. If the side length L is 2.5 m, find the KE of the system if the point masses are rotated as a system around the y-axis (through m1 and m2) at 2.6 rad/sec.
A brick of mass m is initially at rest at the peak of an inclined plane which has a height of 5.52m and has an angle of θ=20.3∘ with respect to the horizontal. After it has been released, it is found to be traveling at v=0.84m/s a distance d after the end of the inclined plane, as shown. The coefficient of kinetic friction between the brick and the plane is μp=0.1, and the coefficient of friction on the horizontal surface is μr=0.2. What is the speed of the brick, in meters per second, just after it leaves the inclined plane? Find the distance, d, in meters.
A 1.75 kg wood block is on a horizontal wood surface and a light string attached to the block passes over a frictionless pulley to a 775 g load that hangs freely (Fig. 8-10). If the 1.75 kg block is initially sliding toward the pulley, find (a) the acceleration of the block, and (b) the tension in the string
The script for an action movie calls for a small race car (of mass 1500 kg and length 3.0 m) to accelerate along a flattop boat (of mass 4000 kg and length 14 m), from one end of the boat to the other, where the car will then jump the gap between the boat and a somewhat lower dock. You are the technical advisor for the movie. The boat will initially touch the dock, as in Fig. 9-81; the boat can slide through the water without significant resistance; both the car and the boat can be approximated as uniform in their mass distribution. Determine what the width of the gap will be just as the car is about to make the jump.
A block of mass m is initially at rest at the peak of an inclined plane, which has a height of 6.9 m and makes an angle of θ = 29° with respect to the horizontal. After being released, it is observed to be moving at v = 1 m/s a distance d after the end of the inclined plane as shown. The coefficient of kinetic friction between the block and the plane is μp = 0.1, and the coefficient of friction on the horizontal surface is μr = 0.2. Find the distance d, in meters