A helicopter lifts a 72 kg astronaut 15 m verticallyfrom the ocean by means of a cable. The acceleration of theastronaut is g/10. How much work is done on the astronaut by(a) the force from the helicopter and (b) the gravitational force onher? Just before she reaches the helicopter, what are her (c) kineticenergy and (d) speed?

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: 2. A boy pushes on a pig with a force F = 490 i + 230j N, giving the pig a displacement d = 1.77i+…

A: Given-   Force F=490 i+230 j NDisplacement d=1.77i+1.90j m

Q: In the figure shown, if the mass (m=9 Kg) is moving with constant speed and traveled a distance d=10…

A: The mass m=9kg  The distance d=10m  F=27N

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: The human small intestine moves food alongits 6.9-m length by means of peristalsis, a contraction…

A:

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

A:

Q: An object moving along the x axis is acted upon by a force F, that varies wit. position as shown.…

A: The work done by the force will be equal to the area under the graph. The area under the graph is…

Q: A constant force, F = 6 i N in the + x direction acts on a 2.0-kg object as it moves from the…

A: Given The constant force applied to an object is F=6 i^ N. The initial position of an object is…

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: A boy carrying a bag on his shoulders walking at angle of 90 degrees does any work or not?

A: Given : A boy carrying a bag on his shoulders walking at an angle of 90 degrees. We know that the…

Q: Spiderman, whose mass is 80.0 kg, is dangling on the free end on the 12.0-m long rope, the other end…

A:

Q: A 5.0-kg block is pushed 3.0 m up a vertical wall with con- stant speed by a constant force of…

A: Figure shows the force acting on the block.

Q: How much work is required to move an object from x = 0 to x = 5 (measured in meters) in the presence…

A:

Q: Ik thẻ figure below, a horizontal force F a of magnitude 24.0 N is applied to a 2.57 kg psychology…

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Q: To push a 35 kg crate up a frictionless incline, angled at 18° to the horizontal, a worker exerts a…

A: Given Mass = 35 kg Angle = 18° Force = 127.2 N Crate slide distance = 1.5 m

Q: A mass of 8 kg is traveling at a constant 10.9 m/s when a 32 N force, F, starts to act in the…

A:

Q: The figure below gives the acceleration of a 2.25 kg particle as it is moved from rest along an x…

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Q: A constant force of 40N in the positive x direction acts on a 4.0-kg object as it moves from the…

A: We are given that A constant Force of 40N  acting along positive x-axis acts on a 4.0kg object as it…

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 9.00-kg particle moves from the origin to position ©, having coordinates x = 4.50 m and y = 4.50 m…

A: We are allowed to give the explanation of first three subparts of a question only which is given…

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: A boxed 10.0-kg computer monitor is dragged by friction 5.50 m up along the moving surface of a…

A: Given: The mass of the computer monitor is 10 kg. The displacement of the object along the plane is…

Q: One species of Darwin’s finch, Geospiza magnirostris, can exert a force of 217 N with its beakas it…

A:

Q: O (S): A 50-N force is the only force on a 2-kg object that starts from rest. When the force has…

A: Given: Force = 50 N Mass of the object =2 kg Distance =2 m v0=0 General equation of motion: v2= v02…

Q: How much work is done by the boy pulling his sister 30.0 m in a wagon as shown? Assume no friction…

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Q: A 185 kg refrigerator is placed inside a mobile freight transport by pushing it up on a 10.0 m ramp…

A:

Q: A 5 N force, parallel to an incline's surface, pushes a crate 5 m up the 15º incline at a constant…

A: The force acting parallel to the incline surface is F = 5 N. The angle of inclination of the…

Q: Initially at rest, a block with a mass of 6 kg above a frictionless surface is pulled to the right…

A:

Q: "A 4.00-kg box of fruit slides 8.0 m down a ramp, inclined at 30.0e from the horizontal. If the box…

A:

Q: A can of sardines is made to move along an x axis from x = 0.20 m to x = 1.24 m by a force with a…

A: Given:- A can of sardines is made to move along an x-axis from x = 0.20 m to x = 1.24 m by a force…

Q: A constant force of 12 N in the positive x direction acts on a 4.0-kg object as it moves from the…

A: A Given force F= 12N The force is in the positive x direction so  F=12 i Displacement d=(6i-8j)m

Q: A constant force of 15 N in the negative y direction acts on a particle as it moves from the origin…

A: The expression for force vector is given by,

Q: A 45-kg skydiver jumps out of an airplane and falls 340 m, reaching a maximum speed of 51 m/s before…

A: Solution:

Q: .How much work is required to move an object from x=2 to x=4 (measured in merters) in presence of…

A: Given:  F(x) = 4 / x2 from x = 2 m to x = 4 m

Q: How much work does the force F(x) = (−2.0/x) N do on a particle as it moves from x = 2.0 m to x =…

A:

Q: Spiderman, whose mass is 80.0 kg, is dangling on the free end of a 12.0-m-long rope, the other end…

A: Mas, m = 80 kg  Length of rope, l = 12 m

Q: The horizontal and vertical velocity components of a 2.0 Kg projectile are Vh = 30 m/s and Vv = 40…

A:

Q: In the figure shown, if the mass (m=8 Kg) is moving with constant speed and traveled a distance d=18…

A: We know that work done  W = force ×displacement

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: A bag of wheat weight 430 kg. To what height should it be raised so that potential energy is 9150 J…

A:

Q: Suppose the ski patrol lowers a rescue sled carrying an injured skiier, with a combined mass of 77.5…

A: In this question we have to answer how much work, in joules, is done by the rope on the sled over…

Q: A bag of wheat weight 130 kg. To what height should it be raised so that potential energy is 150 J ?…

A:

Q: A man pushes a car with a constant force F = (160 N) i - (40N) j and displaces it ∆x = (14 m) i +…

A: Given data: Applied constant force (F) = (160 N) i - (40N) j Displacement (∆x) = (14 m) i + (10m) j…