So imagine a wombat named Horace at rest. It's somehow on the top of a long telephone pole. It has a mass of 44.0 kg. It then slides down the pole reaching a final speed of 5.95 m/s just before reaching the bottom 12.4  later.  (a) Calculate the change in the gravitational potential energy of Horace from top to bottom. (b) What is Horace's kinetic energy just before reaching the bottom?  (c) What is the average force of friction that acts on Horace while sliding?

Q: A 2.12-kg rock is released from rest at a height of 18.7 m. Ignore air resistance and determine (a)…

A: Given Data: The mass of a rock is, m=2.12 kg The height of fall is, h=18.7 m The initial velocity of…

Q: 17. A block of mass m is set into motion up an inclined plane with an initial speed of vi. The block…

A: ( For simplicity of solution I have not used the minus signs born out of sign conventions ) The…

Q: A 0.30-kg stone is held 1.2 m above the top edge of a water well and then dropped into it. The well…

A: Dear student The Gravitational Potential Energy is given as : U = mgh Where m = mass g = 9.8 m/s2 h…

Q: Pilings are driven into the ground at a building site by dropping a 1950 kg object onto them. What…

A: The change in gravitational potential energy with change in height from ground can be expressed as;…

Q: 9. Find the gravitational potential energy of an 88-kg person stand-ing atop Mt. Everest at an…

A: mass (m) = 88 kg Altitude (h) = 8848 m

Q: An 85.1-kg dad climbs to the second floor of his house. His gravitational potential energy increases…

A: Given data: Increase in PE of Dad = 1.95*103 J Mass of dad (M) = 85.1 kg ass of daughter (m) = 21.4…

Q: - If a ball is launched from ground level into the air with 16 J of kinetic energy (KE). [no E-S-A…

A: Given data:  At ground level Ball's initial kinetic energy (KEi) = 16 J Required: GPE and KE at peak…

Q: 4. This Olympic skeleton athlete slides down an icy track head first. The track has many twists and…

A: We are given an athlete sliding down the track. We are given that there is friction and air…

Q: When an 75.7-kg adult uses a spiral staircase to climb to the second floor of his house, his…

A: The objective of the question is to find out the increase in gravitational potential energy of a…

Q: 4. A 230-kg roller coaster reaches the top of the steepest hill with a speed of 6.40 km/h. It then…

A: To solve this problem we use the concept that total energy of the system remains constant

Q: 30 kg box is placed on a 1.9 m tall shelf. a). What is the gravitational potential energy of the…

A: mass = m = 30kg height = h = 1.9 m

Q: 7. A 210-kg roller coaster reaches the top of the steepest hill with a speed of 5.20 km/h. It then…

A: The expression for the force acting on the roller coaster along the incline of the hill is,

Q: A box of mass 4.0 kg hangs by a cable from the ceiling of an elevator. The elevator is moving up at…

A: “Since you have posted multiple questions, we will provide the solution only to the first question…

Q: When a 0.25kg ball is suspended from a light 1.2m string, in the attachment below. The string makes…

A: Step 1:Step 2:

Q: A 240-kg roller coaster reaches the top of the steepest hill with a speed of 5.60 km/h. It then…

A:

Q: A baseball with a mass of 0.150kg is tossed upward with a speed of 42.0m/s. Taking the launch point…

A: When the ball is at its maximum height than its velocity in vertical direction is zero. Apply the…

Q: When an 78.8-kg adult uses a spiral staircase to climb to the second floor of his house, his…

A:

Q: A rock falls from a vertical cliff that is 4.0 m tall and experiences no significant air resistance…

A: Given that,Height : h = 4 (m)Here we need to find the speed car :Now,As we know that,The speed at…

Q: A 4878-kg car is driving down a portion of highway that is inclined 10° with respect to the…

A: According to question---- Given data-- Mass of car (m) = 4878 kg. Incline angle = 10 degree…

Q: 5. A 40.0-kg object is resting at the top of a table 0.60 m above ground level. The object is then…

A: Given data :  Mass of object m = 40 kg  Height of object when it resting on table h1 = 0.60 m above…

Q: A 2-kg block is thrown upward from a point 20 m above Earth's surface. At what height above Earth's…

A: Given that,Mass of block : m = 2 (kg)Height : h1 = 20 (m)Change in gravitational potntial energy :…

Q: 13. A fighter jet is launched from an aircraft carrier with the aid of its own engines and a…

A:

Q: Same set-up for the conservation of energy was performed. The 5-g marble covered a horizontal…

A: Given: mass of the marble: m=5 g=0.005 kg Elevation of ramp: h=15 cm=0.15 m Horizontal distance…

Q: When an 85.4-kg adult uses a spiral staircase to climb to the second floor of his house, his…

A:

Q: A man lifts a 12 kg bucket of water at constant speed, from the bottom of a hole that is 17m deep.…

A:

Q: A 3.89-kg rock is released from rest at a height of 26.6 m. Ignore air resistance and determine (a)…

A:

Q: A skier of mass 70.0 kg is pulled up a slope by a motor-driven cable that is parallel to the ground.…

A: (a) How much time does it take to get up the slope. (b) What is her change in Gravitational…

Q: 25 kg bear slides, from rest, 12 m down a Lodgepole Pine tree, moving with a speed of 5.6 m/s just…

A: We take the initial gravitational potential energy to be Ui= 0. Then the final gravitational…