A 65-kg athlete runs at constant speed a distance of 600 m up a mountain inclined at 20° to the horizontal. He perfoms this feat in 80s. Assuming that air resistance is negligible, (a) how much work does he performand (b) what is his power output during the run? 20

Q: A poor guy pulls a 10-kg luggage along a level boulevard for 5 m by exerting a force of 35N at an…

A: Given data: Mass of luggage is, m=10 kg. Distance travelled is, s=5 m. Magnitude of force is, F=35…

Q: A3kg crate is placed at the bottom of an inclined frictionless plane making an angle 30° above the…

A:

Q: A crane lifts a 650-kg beam vertically upward 23.0 m and then swings it horizontally a distance of…

A: Given: The mass of the beam is 650 kg. The vertical displacement of the beam is 23 m. The horizontal…

Q: A crane lifts a 650 kg beam vertically upward 9.6 m and then swings it westward 18 m. How much work…

A:

Q: A 55 kg packing crate is pulled with constant speed across a rough floor with a rope that is at an…

A: Given: The mass of the packing crate is 55 kg. The tension in the rope is 125 N. The angle between…

Q: As a snowboarder descends a mountain slope, gravity, the normal force, and friction combine to exert…

A:

Q: The work done by a force that varies in magnitude can be obtained from which of the following…

A:

Q: In the figure, a constant force Fa of magnitude 83.0 N is applied to a 3.0 kg shoe box at angle o =…

A: Given data F=83 Nϕ=530h=0.35

Q: When released from a height ofh3= 14.00 m, a 344.00 g block slides down the path shown below,…

A: given , height , h = 14.00 m mass of the block , m = 344 .00 g =0.344 Kg final speed , v = 11.00 m/s…

Q: A 25 kg sack of rice is lifted 1.25 m above the floor for 50 sec. The rate at which work is done on…

A: Given Data: mass (m) = 25 Kg Height (h) = 1.25 m Time (t) = 50 s

Q: A constant force?⃗?of magnitude 83.0 N is applied to a 3.0 kg shoe box at angle φ = 56.0°, causing…

A:

Q: A crane lifts a 650 kg beam vertically upward 10.8 m and then swings it westward 18 m. How much work…

A: The formula for workdone is W=Fxcosθ

Q: A record for stair climbing was achieved by a man who raced up the 1600 steps of the Empire State…

A: Given data from question,  Number of steps = 1600 Height = 320m Time taken = 10.2min Weight of man =…

Q: Find the work done by 45N force in pulling the suitcase at an angle of 50d egrees with respect to…

A:

Q: A 1.5 kg object slides across a horizontal surface with an initial speed of 6.84 m/s. If the object…

A:

Q: A car with a mass of 900.0 kg climbs a 20.00° incline at a steady speed of 60.00 km/hr. If the total…

A: The steady speed of a car is, v=60 km/hr=16.67 m/s The total resistive or dissipative force acting…

Q: A man drags a table 4.20 m across the floor, exerting a constant force of 46.0 N, directed 35.0°…

A: Given data:  Displacement (d) = 4.20 m Force applied (F) = 46.0 N Angle (θ) = 35.0° above the…

Q: A 1700 kg car coasts on a horizontal road with a speed of 23 m/s. a) How much work must be done by…

A: Given data: Mass (m) = 1700 kg Initial velocity (v0) = 23 m/s Final velocity (vf) = 17 m/s Required:…

Q: As an object moves from point A to point B only two forces act on it: one force is nonconservative…

A: The work done by non-conservative is responsible for the mechanical energy of system. When work done…

Q: a box of animal crackers is dragged at constant speed across a surface by horizontal force of 20.0 N…

A: solution is given by

Q: A 40.0 kg jogger runs up the slope described in the fiqure. She maintains a constant speed of 4.00…

A: Given  Mass of jogger(m) = 40Kg Speed (s) = 4m/s

Q: A box of canned goods, contents have a total mass of 4.5 kg, is pushed 2 m along the floor by a…

A: The free body diagram of the box is given below.

Q: A big man is towing a large box with a cord that makes an angle of 25 degreeswith the horizontal.The…

A: Force applied on box = 100 N displacement of box = 2 meter angle between force and displacement…

Q: Suppose the total work done on a 1620-kg car as it coasts 25.0 m down a hill with f = 6.00° is…

A:

Q: A mass of 47 kg is moving horizontally as a force of 190 N, directed at 25° below the horizontal, is…

A:

Q: Calculate the total work done on a 1550-kg car as it coasts 20.4 m down a hill with f = 5.00°. Let…

A: Let m be the mas of the car, s is the distance traveled down the hill, and θ is the inclination…

Q: A weight lifter lifts a 380 N set of weights from ground level to a position over his head, a…

A: Given data: The amount of weight lifted is L=380 N. The height of weight lift is h=2.10 m.   The…

Q: Find the work done in joules by gravity as an object of the mass m=11 kg is raised up at constant…

A: Mass, m = 11 kg  Height, h1=29 m and h2=78 m  Acceleration, a = -g = -10

Q: A 4000-kg elevator starts from rest accelerates uniformly to a constant speed of 2.0 m/s and…

A: The potential energy of a body is given by PE = mgh, where m = the mass of the body g = acceleration…

Q: Suppose a 925-kg car climbs a 2.05° slope at a constant speed of 30.5 m/s.   Calculate the power…

A: Since, the car climbs the slope with a constant velocity, the expression for the power required is,

Q: Calculate the average power necessary for a 55.8 kg person to run up a 5.0 m high, sloped hill, in…

A: The expression for the average power is P=Wt Here,P  is the average power,  iWs the work done by…

Q: Find the work done in joules by gravity as an object of the mass m=14 kg is raised up at constant…

A: Mass of object m = 14 kg Initial height h1 =34 m Final height h2 = 75 m g = 10 m/s²     Concept…

Q: What distance can a crane lift a 55.0 N box, if it expends work of 2.00 x 104 Joules?

A: given ;    force, F = 55.0 N , work done = 2.00 x 104  Joules  formula used;     W = F x d   where,…

Q: The coefficient of kinetic friction between a suitcase and thefloor is 0.272. If the suitcase has a…

A:

Q: f the hand does 40 J of work on the 2.5 kg cart, how fast will it travel? If the person does 480…

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

Q: How much work must you do to push a 11.0 kg block of steel across a steel table (μk=0.6)at a steady…

A: a) The required work done is,

Q: A new record for runningthe stairs of the Empire State Building was set on February 4, 2003.The 86…

A: The total height gained by the runner to run 1576 steps is:

Q: 11 3.0 m A 200 kg piano 3.0 m up a frictionless 200 incline at a constant speed? How much work is…

A:

Q: Find the work done in joules by gravity as an object of the mass m=7 kg is raised up at constant…

A: The mass of the object is 7 kg.  The initial height is 40 m.  The final height is 67 m.  The work…

Q: What is the power output for a 60.0-kg woman who runs up a 3.00 m high flight of stairs in 3.50 s,…

A: The mass of the woman is m=60 kg. The height is h=3 m. The time is t=3.50 s. The final speed is vf=2…

Q: A crane lifts a 650 kg beam vertically upward 10.1 m and then swings it westward 18 m. How much work…

A: Here the workdone is only in upward direction. No workdone in horizontal direction.

Q: A person pulls a 10 kg luggage along a level road for 5 m by exerting a force of 20 N at an angle of…

A:

Q: A box of mass 20.0 [kg] slides down from the top of a surface inclined at 50.0º with height of 10.0…

A: