A 60 kg woman holds a 9kg package as she stands within an elevator that briefly accelerates upward at a rate of 1/4 of the acceleration due to gravity. The elevator starts from rest. a.Determine the power supplied by the elevator on the woman carrying a package at t=3 seconds b. Determine the force exerted by the elevator on the woman c. If the elevator cables ruptured and the elevator starts to freely fall, determine the force exerted by the elevator on the woman d. Determine the work done by the elevator on the woman carrying a package in 3 seconds. e. Determine the work done by gravity on the woman carrying a package in 3 seconds

Q: 1. You push a 25 kg box up a 30 incline using a force of 210 N that is parallel to the ramp. The…

A:

Q: 1. A crate of mass 10.0 kg is pulled up a rough incline with an initial speed of 1.50 m/s. The…

A:

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: mass (m)=4 kg g=10 m/s2 initial speed(u)=5 m/s distance moved with this speed(h)=8m

Q: box of 18kg is released from rest on a rough inclined plane and slides to the bottom. The plane is…

A: Here Mass of a box = 18kg released from rest on a rough inclined plane and slides to the bottom.…

Q: One 50.0 kg cart is lifted straight up 9.0 m above the ground. An identical cart is pulled up a…

A: Given mass of cart = 50.0 kg this cart is lifted straight up by 9.0 m second identical cart is…

Q: 1) A woman does 150 J of work to move a table 2 m across the floor. What is the magnitude of the…

A: Note :As per our guidelines we are supposed to answer only one question . Kindly repost other…

Q: 5. A factory worker pushes a 42.5-kg crate a distance of 11.2 meters along a level floor at a…

A: Given that: The mass of the crate is m=42.5 kg The distance is d=11.2 m The coefficient of kinetic…

Q: A child is pulling a cart massing 2.5 kg forward through a distance of 10 meters at a constant speed…

A: Mass of cart =2.5kg Distance travel = 10m Constant speed of cart =0.55m/s Frictional force =4.9

Q: A 2.56 kg cart moving along a horizontal track in the positive x direction has a changing force…

A:

Q: The ski slopes at Bluebird Mountain make use of tow ropes to transport snowboarders and skiers to…

A: There are 16 skiers, with each skier having a mass of 60 kg. The weight of an object of mass m is…

Q: A 2.99 kg cart moving along a horizontal track in the positive x direction has a changing force…

A:

Q: A 2.00-kg (20.0-N) stone is dropped from a height of 5.0 m, and strikes the ground with a velocity…

A: Weight of stone (w) = 20 N Mass of stone (m) = 2 kg Initial height (h) = 5 m Velocity with which the…

Q: 1. A constant force of 1200 N is applied to a 150-kg block along a rough horizontal surface at an…

A: See below

Q: A 45 kg skier starts from rest and skies down a hill that is angled at 17 degrees from horizontal.…

A: Work done is given as the dot product of force vector and displacement vector . Also according to…

Q: Which of the following statements is true about the potential energy of the book-Earth system?   a.…

A: Given desk top is gravitational zero point level. Book is lifted from distance h below the desk and…

Q: 1. A 58 N block is being pushed up on a plane inclined at an angle of 38⁰ with the horizontal by a…

A: Disclaimer: “Since you have asked posted a question with multiple sub-parts, we will solve the first…

Q: You slide down a snowy hill on a toboggan from a height of 7 m. The hill has a constant slope such…

A:

Q: Let's say the Earth moves around the Sun in a circular orbit with a constant speed (neither is…

A: The correct answer is B. The work done on the Earth is zero, since the force of gravity is always…

Q: A 1.0 kg object is thrown upward with a velocity of 50.0 m/s. a. At what time will its kinetic…

A:

Q: A sledge loaded with bricks has a total mass of 18.0 kg and is pulled at a constant speed by a rope…

A: Draw the free-body diagram of the sledge.

Q: A student pushes a block of mass m=2.5 kg with a horizontal force of F= 60 N over a distance of 50…

A: Given value--- mass = 2.5 kg. F = 60 N. d = 50 m. mu = 0.375 . We have to find--- a. The…

Q: A box of 10.0 kg is accelerated from rest by a horizontal force at a rate of 2.0 m/s2 for 10.0…

A: Given data The mass of the box is given as m = 10 kg. The rate of acceleration is given as a = 2…

Q: Determine the work done on the book by Fa.

A:

Q: A block of mass 2.28 kg starts sliding from rest down an incline plane for 25 cm. If the block has a…

A:

Q: 2. A 1050 J of work is done by a post-person when pushing a parcel with a mass of 33.2 kg with a…

A:

Q: 10 kg block is being pulled along the ground (µk=0.3) by a guy pulling the rope at a 30° ngle (from…

A:

Q: a. Calculate the work done (in J) on a 1550 kg elevator car by its cable to lift it 39.5 m at…

A: Given : Mass of the car, m = 1550 kg Friction force, F = 135 N Lifted height of car, h = 39.5 m…

Q: A 300-g block is dropped onto a vertical spring with spring constant k =180.0 N/m. The block becomes…

A: Mass of block m=300 grams = 0.300 KgSpring constant K= 180 N/mCompression in spring x=44.8 cm…

Q: A 700 kgkg elevator accelerates upward at 1.4 m/s2m/s2 for 14 mm, starting from rest. A. How much…

A: A 700 kg elevator accelerates upward at 1.4 m/s2 for 14 m, starting from rest.A. How much work does…

Q: A 50 kg crate is being pulled to the right with a velocity of 5 m/s on a horizontal floor for 75 s…

A:

Q: As a simple pendulum swings back and forth, the forces acting on the suspended object are the…

A:

Q: An object moves from point A to point B under the influence of only two forces. Between points A and…

A: Sum of work done by all forces= change in Mechanical energy…

Q: a. Determine the work a hiker must do on a 15 kg backpack to carry it up a hill of height h = 14 m;…

A: Mass of the backpack m=15 kg, height of the hill h=14 m and acceleration due to gravity. Let us take…

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.