A woman lifts her 13 -newton child up 3 meters and carries her for a distance of 10 meters to the child’s bedroom. How much work does the woman do?
Q: A truck is towing a broken-down car via a horizontal cable for 360 m along a road. If the tension on…
A: Tension is a pulling force acting at the ends of a string or cable. Work done is the energy imparted…
Q: It takes you 4 seconds to drag a 100 kg sofa 2.5 m across the floor while exerting a constant…
A: Time taken to drag the sofa t=4 s The mass of the sofa m=100 kg The distance moved d=2.5 m The force…
Q: joel is performing a leg curl. To raise the weight, he exerts a vertical force of 1500 N of force to…
A:
Q: An archer pulls her bowstring back 0.400 m by exerting a force that increases linearly from zero to…
A: Given(s): The force linearly increases from 0 to 230 N. Displacement, x=0.400 m Required: Workdone,…
Q: Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 2.2×106 N, one an…
A:
Q: A dockworker pushes a box along a horizontal floor and moves a distance of 4.6 m with a force F…
A:
Q: A 100 N box is slid on a horizontal frictionless surface by applying a 33 N force parallel to the…
A:
Q: A spring and block are in the arrangement of the figure. When the block is pulled out to x = +5.0…
A:
Q: Your job is to lift 30-kg crates a vertical distance of 0.90 m from the ground onto the bed of a…
A:
Q: A dog pulls a 7.3 kg container full of treats a distance of 10 m away from home with a constant…
A:
Q: A 1.9 kg book is lying on a 0.75m high table. You pick it up and place it on a bookshelf 2.1 m above…
A:
Q: helicopter lifts a 80 kg astronaut 17 m vertic (a) How much work is done on the astr (b) How much…
A: GivenMass of Astronaut, m=80 kgDistansed moved vertically, d=17 mAcceleration of Astronaut, a=g10
Q: The graph shows the xx component of a force that acts on an object that moves on the xx axis. The…
A:
Q: A motorist runs out of gas on a level road 150 m from a gas station. The driver pushes the 1,120 kg…
A: Given: Distance traveled, d=150 m Mass, m=1120 kg Force, F=180 N Formula: Work=Force×distance W=F×d
Q: A child pulls on a wagon with a force of 75 N. If the wagon moves a total of 30 m in 2.0 min, what…
A: Given , Force = 75 N Displacement s = 30 m Time = 2 minutes
Q: A 5.54-kg briefcase is carried onto an elevator and rises 366 m as the elevator rises to the top…
A: If an object increase it height or up high, than the work will be done on it by the gravitational…
Q: A 1260-kg car starts from rest at the bottom of a driveway and has a speed of 3.00 m/s at a point…
A: given - mass of car = 1260 kg initial velocity of car = 0 m/s velocity of…
Q: If a man lifts a 20.0‐kg bucket from a well and does 6.00 kJ of work, how deep is the well? Assume…
A: Mass of bucket (m) = 20.0 kg Work done ( W ) = 6.00 kJ
Q: A spring and block are in the arrangement of the figure. When the block is pulled out to x = +5.0…
A: Write the given values of the problem- the block is pulled out then-x=5 cm force of the…
Q: One boat tows another boat by means of a tow line, which is under a constant tension of 465 N. The…
A: Given data: Tension force (F) = 465 N Velocity (v) = 4.60 m/s Time (t) = 1.10 min Required: The work…
Q: The graph below shows the force needed to stretch a spring. What work is needed to stretch it from 5…
A:
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 60.0-kg woman climbs a staircase to a level 11.0 m above her starting point in 66.0 s. (a) How…
A:
Q: 1.6 kg book is lying on a 0.79 m -high table. You pick it up and place it on a bookshelf 2.0 m above…
A:
Q: Starting from rest, an 1800 kg car rolls down a hill 22 m high. It reaches the bottom going 15 m/s.…
A: Mass of car (m)= 1800 kg Height of hill = 22 m Velocity at bottom of the hill = 15 m/s
Q: Number Units Number i Units Number Units Number Units (c) x
A:
Q: A girl with a 40 kg mass is riding an 8 kg bike. At the top of the hill her speed is 6 m/s and her…
A:
Q: A mouse of mass 200 g falls 100 m down a vertical mine shaft and lands at the bottom with a speed of…
A:
Q: A horizontal force F pulls a 20-kg carton across the floor at constant speed. If the coefficient of…
A: Given: The mass of the cartoon is m = 20 kg The distance the cartoon should move is d = 3 m The…
A woman lifts her 13 -newton child up 3 meters and carries her for a distance of 10 meters to the child’s bedroom. How much work does the woman do?
The child is given to have a weight of 13 N.
This child is being lifted by their mother, from the ground, up to a distance of 3 meters straight up, after which the women walks straight 10 meters to the child's bedroom.
Now, there are two activities being done here, first is the lifting of the child, straight up, next is carrying the child horizontally to their room.
The work done against any force for a given displacement is given by the equation
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- A motorcyclist runs out of gas on a level road 250 m from the gas station. She pushes the 220-kg motorcycle with a constant force of 150 N. How much work does she do?A person pulls a crate 49.4 meters along a horizontal floor by a constant force 103.2 N, which acts at 37.5 degrees. The floor is rough and exerts a friction force 50 N. What is the total net work done on the crate?A firefighter climbs a 10 m long ladder that is inclined at 40° to the horizontal. If she has a mass of 53 kg and climbs at constant speed, how much work does she do?
- A motorist runs out of gas on a level road 210 m from a gas station. The driver pushes the 1,120 kg car to the gas station. If a 180 N force is required to keep the car moving, how much work (in J) does the driver do?A helicopter lifts a 65 kg astronaut 18 m vertically from the ocean by means of a cable. The acceleration of the astronaut is g/10. (a) How much work is done on the astronaut by the force from the helicopter? (b) How much work is done on the astronaut by her weight? (c) What is the kinetic energy? (d) What is the speed of the astronaut just before she reaches the helicopter? m/sA person pulls a crate 43.5 meters along a horizontal floor by a constant force 112.3 N, which acts at 37.7 degrees. The floor is rough and exerts a friction force 49 N. What is the total net work done on the crate?
- A 10 kg barbell is rolling down a hill. There is no friction or air resistance acting on it, only the force of gravity. If it starts out moving 2 ms1, and ends up moving 7 ms1, then how much work does gravity do on it?A cheerleader lifts his 68 kg partner straight up off the ground a distance of 0.72 m before releasing her. Assume the partner’s velocity is zero at the beginning and the end of the lift. The acceleration of gravity is 9.8 m/s2 . If he does this 22 times, how much work has he done? Answer in units of J.A 1.9 kg book is lying on a 0.75mm high table. You pick it up and place it on a bookshelf 2.1 mm above the floor. During this process, how much work does gravity do on the book? During this process, how much work does your hand do on the book? Express your answer with the appropriate units.
- A student applies a 20 newton force to move a crate at a constant speed of 4.0 meters per second across a rough floor. How much work is done by the student on the crate in 6.0 seconds?The spring-flex exercise system consists of a spring with one end fixed and a handle on the other end. The idea is that you exercise your muscles by stretching the spring from its natural length, which is 38 cm. If a 170 Newton force is required to keep the spring stretched to a length of 52 cm, how much work is required to stretch it from 51 cm to 70 cm? Your answer must include the correct units. Work =You are out on the road with your friends, when you suddenly run out of gas. You and your friends apply a cumulative force of 103 N to push the car 96 m to the nearest gas station. What is the work done on the car?