ohn, of mass 82.4 kg can do work for about 2.0 minutes at the rate of 1.0 hp. How long will it take him to climb three flights of stairs, a vertical height of 12.0 m? 1 hp= 746 watts a) 8.2 s b) 130 s c) 13 s d) 9.1 s

Q: A 6-kg block moves along the x-axis. Its position changes with time as x=2+t-4t where x in meters…

A:

Q: What is the work done by the force F? F S1 S2 O Fs None of the above Zero O-Fs

A: Given data:   A force F, towards upward direction The object traveled a distance s Angle between…

Q: Consider the 11.0 kg motorcycle wheel shown below. Assume the wheel is approximately a ring with an…

A:

Q: A mass of 20 kg is at a height of 8 m above the ground. Then the potential energy possessed by the…

A: Given:- mass of object is 20 kg  height above the ground is 8 m  Find:- potential energy?

Q: Problem 1 Cat Lift 2mg Three ropes are attached to the center of a box that has mass m and is being…

A: The weight of the box will always act in the downward direction. a) Calculate the vertical component…

Q: Which of the following is correct / True? O A. The kinetic energy of a system must always be…

A:

Q: An coin is dropped vertically from the water surface in a swimming pool, water drag force is non…

A: This can be done using the concept of work done W=

Q: As a ball falls under the influence of gravity, does gravity do positive work or negative work?…

A: Given data:  A ball falls under influence of gravity Required: The work done by gravity is negative…

Q: a mango of 3 g ia at a certain hight above the ground. the mango has a potential energy of 7J.…

A: Given m=3 g= 0.003 kg g=9.8 m/s^2 PE=mgh=7 J h=7/(9.8*0.003) = 238.095238 m u= initial velocity = 0…

Q: catapult laucher on an aircraft carier accelerates a jet from rest to 72m/s. The work done by the…

A:

Q: Is work done whenever a force is exerted? Explain.

A: Force F is applied to body to displace it from one position to another position, then work done on a…

Q: Find the work done in joules by gravity as an object of the mass m=5 kg is raised up at constant…

A: Given : m = 5 kg h1 = 23 m h2 = 69 m g = 10 m/s2

Q: A metal box having a mass of 100.0kg is pulled along a level plane, at uniform speed, by a…

A: Answer:-  Given Mass of a metal box(m) = 100.0 kg  At uniform Speed by a horizontal rope applying a…

Q: A force É = 12 N î - 10 N î acts on an object. How much work does this force do as the objęct moves…

A:

Q: How much work is done against the gravitational force on a 5.5- kg briefcase when it is carried from…

A: Given data:  Mass (m) = 5.5 kg Vertical height (h) = 380 m Required: The work done (W)

Q: A 5-kg block is pushed 3 m up a vertical wall with constant speed by a constant force of magnitude f…

A:

Q: Computation. A construction crane lifts a 415-kg steel beam 180 m vertically into the air with an…

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: Given data: Mass (m) = 2.00 kg Weight (mg) = 20.0 N Height (h) = 5.0 m Initial velocity (v0) = 0 m/s…

Q: 1. Calculate the work done by a force of 30 N in lifting a load of 2kg to a height of 10m (g =…

A: Required work done by given forces to displace the objects.

Q: An archer retracts the bowstring 0.400 m, applying a force that increases from zero to 330 N. How…

A:

Q: how much work are you doing?

A:

Q: A crane pulls up a car weighing 500kg to a vertical height of 4m. Calculate the work done by the…

A: Work is Calculated by:   Work = Force x Displacement   Work = mgH           ......(1)     ( Here H…

Q: Jorge wants to lift a large box of mass 50 kg from the floor to his apartment, which is at a height…

A: Given data The mass of the box is m = 50 kg. The height Jorge wants to lift is s = 20 m. a) The…

Q: 102 kg man climbs a 3.2 meter high staircase at constant speed. How much work has he done? (=9.8 m/s…

A:

Q: A 3.2-kg bucket of water is lifted vertically 2 m How much work against gravity is done?  Use g =…

A: Mass of bucket of water = 3.2 kg  Vertical distance = 2 m  g = 9.8 m/s2

Q: The force F = (3i - j) N acts on a particle, causing a displacement of Ar = (3i + 2j) m. Find the…

A: Answer  W=7 J

Q: 7) A 65 kg sled is on skates and has no friction. You use a rope to pull on the sled with 100 N of…

A: The mass of the sled is m=65 kg The applied force is F=100 N. The angle of the force above the…

Q: Q. 21: To push a 32 kg crate across a floor a worker applies a force of 190 N directed at the angle…

A:

Q: It takes 180J of work to compress a certain spring 0.15 m. (a) What is the force constant of this…

A:

Q: An acorn falls from

A: Kinetic energy = (1/2) mv2  Potential energy = mgh

Q: A robot is capable of lifting heavy objects directly up a ladder. The manufacturer claims the robot…

A: Mass of robot m = 500 kgThe power output of the robot is P = 150,000 W

Q: A 50 kg box is pushed 7 m across the floor at constant velocity by a force F= 500 N directed 53…

A: Simple and intersting problem from basic physics. Please have a good look

Q: Calculate the work done in lifting 359 Kg bag,  2.7 meters above the floor on earth. ( g = 9.81…

A:

Q: A person picks a 1.00 kg box of macaroni from off the shelf and lowers it 0.77 m into a shopping…

A: Given:-  The mass of the box of macaroni is m = 1.0 kg. The distance the person put that box is d =…

Q: 5) You carry a 5.0 kg bag of groceries 0.8 m above the ground at constant speed across a 2.3m room.…

A:

Q: A 2 kg rock is thrown upward, with a speed of 5 m/s and returns to the same spot, with the same…

A: Give Mass m = 2 kg Initial velocity is U = 5 m/s in upward direction.  Final velocity is V = 5 m/s…

Q: 3. A factory worker pushes a 30.0-kg crate a distance of 4.5 m along a level floor at constant…

A: Given data: The mass of crate is m=30 kg. The distance traveled is d=4.5 m. The applied force is…

Q: How much work is done by the gravitational force when a 175 kg pile driver falls 4.0m?

A: Work done by force F in moving object distance d is given by,  W =F.d = F×d×cosθ Where, θ is the…

Q: Children in a tree house lift a small dog in a basket 4.70m up to their house. If it takes 201J of…

A:

Q: A 2 kg block is experiencing a variable force P as it moves down an incline. In the first 4 m, the…

A: as per our guidelines we are supposed to answer up to 3 subparts of a question. Kindly repost…

Q: 1. How far must a 12N force pull a 150g toy car if 600 J of energy are transferred? distance m 2. An…

A: 1)Force applied=12N mass of the toy car=150gm=0.15 Kg Energy transferred to the toy car=600J…