A 59 kg skier leaves the end of a ski-jump ramp with a velocity of 26 m/s directed 20° above the horizontal. Suppose that as a result of air drag the skier returns to the ground with a speed of 17 m/s, landing 11 m vertically below the end of the ramp. From the launch to the return to the ground, by how much is the mechanical energy of the skier-Earth system reduced because of air drag?

Q: On an essentially frictionless, horizontal ice rink, a skater moving at 6.0 m/sm/s encounters a…

A: Given initial speed= 6m/s Final speed = 2.88m/s Friction force = 0.22Mg = 2.2M Change in kinetic…

Q: A 3-kg block has a speed of v=9 m/s at point O as it travels along a rough incline OA with μk=0.25.…

A:

Q: A 4.3-kg ball is thrown from the top of a 10-m tall building (point A) with a speed of 6 m/s at an…

A: When the ball is at maximum height, the total energy as K.E. is zero ( that's when it is at a 10 m).…

Q: A 8.79-kg particle is subject to a net force that varies with position as shown in the figure. The…

A: Part a:  answer: 1.306 m/sec  Part b:  answer: 2.263 m/sec   Part c:   answer: 2.613  m/sec  Thank…

Q: A 4.7 g marble is fired vertically upward using a spring gun. The spring must be compressed 5.0 cm…

A:

Q: A 3.0 kg block starts with a speed of 18 m/s at the bottom of a plane inclined at 39° to the…

A: Mass of block (m) = 3 kg Speed of block at the bottom of incline (v)= 18 msAngle of plane with the…

Q: A 4.00–kg block is set into motion up an inclined plane with an initial speed of vi = 8.20 m/s (see…

A:

Q: Emma (m=55 kg) is going around a 19.5-m high roller coaster loop. Her velocity at the bottom of the…

A:

Q: A 3-kg block has a speed of v=9 m/s  at point O as it travels along a rough incline OA with μk=0.25.…

A:

Q: In the figure here, a block of ice slides down a frictionless ramp at angle 0=59.0° while an ice…

A: If the rope had not been attached to the block, the kinetic energy would have been greater by…

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

A:

Q: A rope is used to pull a 3.5 kg block at constant speed 6 m along a horizontal floor. The force on…

A: Given The mass of the block is m=3.5 kg. The distance covered by the block is d=6 m. The force…

Q: of the cart at each of the following po A: The bottom of the first hill B: The top of the second…

A: Conservation of Energy According to the law of conservation of energy, the total mechanical energy…

Q: In the figure below, a block of ice slides down a frictionless ramp at angle e = 50° while an ice…

A: Here F = 30N D = 0.43m Here we will calculate work done by the rope

Q: During terrible weather at a ski-flying world championship, a ski jumper tried to adjust for bad…

A: Mass of ski jumper, m=73kg Drop in height, h=45m

Q: Consider a roller coaster that moves along the track shown in the figure below. Assume all friction…

A:

Q: In the figure, a block of mass m = 2.3 kg slides head on into a spring of spring constant k = 380…

A:

Q: In a circus act, a 60 kg clown is shot from a cannon with an initial velocity of 16 m/s at some…

A: Given,

Q: A 55.0 g tennis ball was hit by a racket at an angle of 33° above the horizontal and travel a…

A: Mass of the tennis ball m=55 g, angle it makes with the horizontal when it is hit θ=9.8o, vertical…

Q: A 0.42 kg shuffleboard disk is initially at rest when a player uses a cue to increase its speed to…

A:

Q: A 4.00–kg block is set into motion up an inclined plane with an initial speed of vi = 7.80 m/s (see…

A:

Q: At Schlitterbahn, a 75.0 kg person rides a 12.0 m high water slide. If dissipative forces do -6.25 x…

A: Visualize the Problem:

Q: A 51.3-g golf ball is driven from the tee with an initial speed of 53.4 m/s and rises to a height of…

A: Given  Mass of ball, M = 51.3 g  Initial speed, u = 53.4 m/s  Ball rises to a height, thus maximum…

Q: Fis A 4.8 kg body is at rest on a frictionless horizontal air track when a constant horizontal force…

A: Given   mass of the body m=4.8kg  initial speed of the body u=0m/s

Q: utral gear at 1

A: Given: Jeep's mass is 1000 Kg Velocity level and hill's height can be 14 m/s and 10m. To find the…

Q: A horizontal force of magnitude 47.6 N pushes a block of mass 3.58 kg across a floor where the…

A:

Q: A box of unknown mass is sliding with an initial speed vi = 6.00 m/s across a horizontal…

A: GIVEN         Intial velocity of box =vi= 6.0m/s        length of Rough section of floor=d=2.8m…

Q: Using the work and energy relations, solve for the constant force "P" required for a system…

A: The work energy theorem states that the work done by the system of forces is equal to the change in…

Q: the coefficient of kinetic friction between the block and floor?

A:

Q: In the figure, a block of mass m = 4.00 kg slides head on into a spring of spring constant k = 230…

A:

Q: A 68.5-kg athlete leaps straight up into the air from a trampoline with an initial speed of 8.7 m/s.…

A:

Q: At Schlitterbahn, a 75.0 kg person rides a 12.0 m high water slide. If dissipative forces do -6.25 x…

A: Given m=75kg h=12m Ed=-6.25*10^3J To find the velocity at the bottom of the slide :

Q: In order to test energy principles, I decide to do the following experiment with my son at the…

A:

Q: A 7.44-kg particle is subject to a net force that varies with position as shown in the figure. The…

A:

Q: In the figure here, a block of ice slides down a frictionless ramp at angle 0=56.0° while an ice…

A:

Q: For its size, the commonflea is one of the most accomplished jumpers in the animal world.A…

A: Given The height cover by the flea is h=20 cm=20×10-2 m. The mass of flea is m=0.50 mg. By the…

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

A:

Q: A volcanic ash flow is moving across horizontal ground when it encounters a 10 upslope. The front…

A: Consider mass of the ash flow be m, the vertical distance traveled by the flow be h, and the…

Q: Consider the skateboarder in the Figure. If she has a mass of 55 kg, an initial velocity of 20 m/s,…

A: Mass = 55 kg  Speed at bottom = 20 m/s  Speed at top = 12 m/s  Height = 5 m

Q: In the figure, a block of mass m = 3.70 kg slides head on into a spring of spring constant k = 370…

A: The mass of the block: m=3.70 kg The spring constant of the spring: k=370 N/m Compressed length of…

Q: During a rockslide, a 620 kg rock slides from rest down a hillside that is 710 m along the slope and…

A: Given that, the initial height of the rock is h=240m the mass of the rack is m=620kg the length of…