A child applies a force F parallel to the z-axis to a 5.00 kg sled moving on the frozen surface of a small pond. As the child controls the speed of the sled, the z-component of the force she applies varies with the z-coordinate of the sled as shown in figure (Figure 1). Suppose the sled is initially at rest at z =0. You can ignore friction between the sled and the surface of the pond. Part A Use the work-energy theorem to find the speed of the sled at 8.0 m. For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Motion on a curved path. Express your answer to two significant figures and include the appropriate units. HA ? Value Units Submit Request Answer Part B Use the work-energy theorem to find the speed of the sled at 12.0 m. Express your answer to two significant figures and include the appropriate units. Figure < 1 of 1 F (N) Value Units 10 Submit Request Answer Provide Feedback x (m) 12 8. 4. 5.

Q: The 1-kg ball is thrown at the suspended 26-kg block with a velocity of 9 m/s. If the time of impact…

A:

Q: A 18-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 26 N.…

A:

Q: The 42-kg crate is stationary when the force Pis applied. Determine the resulting acceleration of…

A: Given data: The mass of crate is m=42 kg. The angle of ramp is θ=17°. The coefficient of static and…

Q: In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and…

A:

Q: a body with a mass of 73 kg is dropped from a height of 700 m without initial speed. As it falls,…

A:

Q: Mass mrests on a smooth horizontal surface, mp hangs vertically. Part A If mA = 12.0 kg and mp=3.0…

A:

Q: Two penguins, Wheezy and Mumble, are racing down an icy slope into the water below.  Wheezy has a…

A: The coefficient of friction μ=0.12 The angle of inclination θ=80 The free body diagram of the…

Q: Scientists are experimenting with a kind of gun that may eventually be used to fire payloads…

A:

Q: Problem 5. A 2.0 kg block slides on a rough horizontal surface. A force (P = 6.0 N) is applied to…

A: Given thatmass, m= 2kgforce, P = 6 Nacceleration, a = 1.2 m/s2

Q: A doctor pushed a 16-kg sled along the horizontal snow-covered ground by a horizontal force of 24 N.…

A: The required free body diagram is,

Q: The 29 kg crate is subjected to a force having a constant direction and a magnitude 150 N. When s…

A:

Q: A block of mass m = 2.00 kg is released from rest at h = 0.500 m above the surface of a table, at…

A: The net force acting on the object is the product of mass and acceleration of the object. If the net…

Q: A waitress shoves a ketchup bottle with mass 0.45 kg to her right along a smooth, level lunch…

A:

Q: A 200 g hockey puck is launched up a metal ramp that is inclined at a 30° angle. The coefficients of…

A: Write the given values of this problem. m=200 g or 0.2 kgθ=30°μs=0.40μk=0.30vi=4.9 m/s

Q: A 7780-kg car is travelling at 25.8 m/s when the driver decides to exit the freeway by going up a…

A: Mass of the car m= 7780 kgInitial velocity of the car u = 25.8 m/sFinal velocity of the car v = 13.5…

Q: An object of mass mm is at rest at the top of a smooth slope of height h and length L. The…

A: Given: mass = m length of ramp = L height of ramp = h

Q: Three blocks are in contact with one another on a frictionless, horizontal surface as shown in the…

A:

Q: A car is accelerating with constant acceleration A. Block of mass m1 moving to the right as block of…

A:

Q: Three blocks are in contact with one another on a frictionless, horizontal surface as shown in the…

A: Let, the contact force between block 1 and 2 be 'P' and the contact force between block 2 and 3 be…

Q: A 500 g bottle of soda is slid across a table. It begins with a speed of 2.0 m/s and comes to rest…

A: Given value--- mass = 500 g. initial speed = 2 m/s. distance = 35 cm. We have to find---…

Q: Corey, whose mass is 95 kg, stands on a bathroom scale in an elevator. The scale reads 830 N for the…

A: Apply newton’s second law of motion along the motion of the lift,

Q: Somone is standing on a piece of cardboard holding a wire that is attached to a vehicle.  The…

A:

Q: The 0.20-kg particle has a speed v = 10.4 m/s as it passes the position shown. The coefficient of…

A:

Q: A metal ball is dropped, hits the ground, and eventually comes to a stop. Now, what is the…

A: A ball moving on the ground eventually stopsbecause of frictional force between the balland the…

Q: As a protest against the umpire's calls, a baseball pitcher throws a ball straight up into the air…

A: The expression for the net force is,

Q: Shown in the figure is a graph of the net force exerted on a particle of mass 2.5 kg. At time t = 0…

A: Please find the attachment. (NOTE: scale for force is not given in the problem, I have taken 1N per…

Q: A car is moving along a frictionless surface with a speed of 2 m/s to the left. You and your friend…

A: Force is a vector quantity and we have to add it using law of vector addition. F = m a  F is total…

Q: • • At the local grocery store, you push a 14.5-kg shopping cart. You stop for a moment to add a bag…

A:

Q: A 48.2-kg skater is standing at rest in front of a wall. By pushing against the wall she propels…

A: The average force exerted on an object is defined as ratio of the change in its momentum and the…

Q: In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and…

A:

Q: A car driver is stopped at a red light at an intersection. When the light goes green, she puts her…

A:

Q: Two teams of nine members each engage in a tug of war. Each of the first team's members has an…

A:

Q: Suppose you are at a bowling alley, where a machine uses a constant force and pushes balls up a ramp…

A: The work done is given as, W = F x l

Q: An electron with a speed of 1.10 × 107 m/s moves horizontally into a region where a constant…

A:

Q: In the figure below, two blocks are connected over a frictionless, massless pulley. The weight of…

A:

Q: A block with a mass of m = 16 kg rests on a frictionless surface and is subject to two forces acting…

A: (a)From the figure the net force acting in the x direction is given by,

Q: An object of mass m = 1.00 kg is observed to have an acceleration of a with a magnitude of 23.6 m/s²…

A: Given Data:- Mass of the object is m=1.00 kg Acceleration of the object is a=23.6 m/s2 in a…

Q: m1 m2 F. m3 Three blocks are placed in contact with each other and their masses are m1 = 10.9 kg, m2…

A: We know  Newton's second law of motion  F=ma

Q: Three 0.300-kg billiard balls are placed on a table at the corners of a right triangle as shown in…

A:

Q: After falling from rest from a height of 29 m, a 0.45-kg ball rebounds upward, reaching a height of…

A: Given,

Q: Two students are pushing crates across a frictionless floor. The crates are initially at rest. Bing…

A:

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”