A falling package with a parachute is greatly affected by air resistance. Suppose a package (m = 25 kg), dropped from an altitude of y = 1500 m, hits the ground at a speed of v = 45 m/s. Calculate the work done by air resistance. By conservation of energy, the initial total mechanical energy is equal to the final total mechanical energy. Let K be the kinetic energy, U be the gravitational potential energy, and Wair be the work done by the drag force from air resistance.

Q: A particle is subject to a force F x that varies with position as shown in above figure. Find the…

A:

Q: Your brand new 75.0-kg refrigerator falls out of the back of your truck while you are traveling up a…

A:

Q: The diagram shows a crate with mass m = 38.2 kg being pushed up an incline that makes an angle φ =…

A:

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 collie drags its bed box across a floor by applying a horizontal force of 6.7 N. The kinetic…

A: The work done by horizontal applied force, F, to drag a mass by a distance d, is given by: Work =…

Q: A falling package with a parachute is greatly affected by air resistance. Suppose a package (m = 25…

A: Given data: Mass of package is, m=25 kg. The altitude is of, y=1500 m. The speed is, v=45 m/s.

Q: An air puck of mass m1 = 0.28 kg is tied to a string and allowed to revolve in a circle of radius R…

A: Write the given values. m1=0.28 kgR=1.4 mm2=1.4 kg

Q: A 1100 kg car drives up a hill that is 15.2 mm high. During the drive, two nonconservative forces do…

A:

Q: You are moving into an apartment and take the elevator to the 6th floor. Suppose your weight is 610…

A: Given Weight of the the person is W1=610 N Weight of the belongings is W2=1020 N Height of the 6th…

Q: In the figure, a frictionless roller coaster car of mass m = 632 kg tops the first hill with speed…

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…

Q: A crate with mass m = 24 kg is being pushed up an incline that makes an angle φ = 18.7 degrees with…

A: Givenmass, m=24 kgangle, ϕ=18.7 degforce, P=460 Ncrate start from restfinal speed, v=4.8…

Q: A horizontal force of magnitude 49.0 N pushes a block of mass 4.37 kg across a floor where the…

A: The work done by the applied force is given by the formula:Here, is the applied force, is the…

Q: A 63kg skier coasts down a 30◦ slope. At the top of the slope her speed is 3.6m/s. She accelerates…

A:

Q: You are moving into an apartment and take the elevator to the 6th floor. Suppose your weight is 690…

A:

Q: A 1260 kg elevator accelerates upward at 1.20 m/s2 for 16.8 m starting from rest. How much work (in…

A: Given: Mass of the elevator is m=1260 kg Acceleration of the elevator is a=1.20 m/s2 Height gained…

Q: A hockey puck of mass 0.25 kg is sliding along a slippery lake with an initial speed of 60 m/s. the…

A: Given that Mass m = 0.25 kg Initial speed u = 60 m/s Coefficient of friction μ = 0.030 Final speed V…

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 car of mass 1078 kg moves up a mountain road with the help of a nonconservative force that does…

A:

Q: The graph shows the x component of a force that acts on an object that moves on the x axis. The…

A:

Q: True or false  The potential energy of an object cannot be increased by internal forces. When a…

A: Internal forces are kind of forces that are exchanged by the object in the system. The internal…

Q: You are moving into an apartment and take the elevator to the 6th floor. Suppose your weight is 640…

A:

Q: A 128 kg crate slides down a ramp, starting from rest. The ramp is inclined at an angle of 24.2…

A:

Q: An object of mass m = 3 kg is released from rest at the top of a frictionless inclined plane at…

A: Given:-  The mass of the block m = 3 kg, it is on a point A initially in the rest.  The work done on…

Q: Bob is pulling a box of his toys of mass 15.0 kg along a rough horizontal surface for a distance of…

A: Given: The mass of the toy is 15 kg. The tension in the string is 58 N and the direction is 30o with…

Q: A particle of mass 2.0 kg moves under the influence of the force F(x) = (-5x² = 7x) N. Suppose a…

A: We must ascertain the amount of work the frictional force does.

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: A 130 kg crate slides down a ramp, starting from rest. The ramp is inclined at an angle of 27.8…

A: Given : Mass of crate = 130 kg             Angle  = 27∘             Coefficient of kinetic friction…

Q: An archer stands on a cliff with his bow 32.5 meters above a valley and fires an arrow with a mass…

A: “Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: Velocity from position The graph of s = ƒ(t) represents the position of an object moving along a…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: Starting from rest, a 5.40-kg block slides 1.90 m down a rough 30.0° incline. The coefficient of…

A: a) The required work done by force of gravity is,

Q: e roof, descends another vertical 7.0-meter ladder, and returns to his starting location on the…

A: GivenMass of carpenter, m=75 kgHeight of ladder, h=7 mDistance travelled on roof, d=12 m

Q: A falling package with a parachute is greatly affected by air resistance. Suppose a package (m = 25…

A:

Q: A 144 kg crate slides down a ramp, starting from rest. The ramp is inclined at an angle of 15.5…

A: Work done by gravitational force=mgh Here h is height of inclined

Q: A horizontal force of magnitude 32.1 N pushes a block of mass 3.91 kg across a floor where the…

A: Here, we calculate the given as follow;

Q: lock of mass m = 2.9 kg is placed on a rough incline surface making an angle θ = 13.8°  with…

A:

Q: What is the change in the kinetic energy of the block from point O to the highest point reached by…

A: Given:mass of the block, m = 3kg initial speed, u = 8.5 m/s angle of inclination, θ = 20o coeff of…

Q: A child of mass m = 29 kg slides down a slide of height h = 2.4 m without friction. Let…

A: A) At the top of the slide, the velocity of the child is zero. Write the expression for the total…

Q: A falling package with a parachute is greatly affected by air resistance. Suppose a package (m = 25…

A: Mass of package = 25kg Mass drop from height =1500m Velocity of mass hit the ground =45m/s

Q: A 51.6 kg sled coasts down a hill, starting from rest. The hill is inclined at an angle of 17.4…

A: Recall W=FdcosθHere angle θ between normal force and displacement is 900 so cos90=0

Q: A horizontal force of magnitude 48.3 N pushes a block of mass 3.75 kg across a floor where the…

A: