A person is about to carry a 50 kg sack of rice on top of his head while walking for 20 meters straight. How much work was done on the sack of rice? A. 9510 Joules B. 0 Joules C. 1000 Watts D. Cannot determine, lacks information

Q: 1. Using a force of 150 newtons, you push a sofa to the other side of a room, a distance of 3.1…

A: #1 Given data: The applied force is F=150 N. The distance moved is L=3.1 m.

Q: "30 kg bear slides, from rest, 8 m down a Lodgepole Pine tree, moving with a speed of 5.6 m/s just…

A: Dear student The Gravitational Potential energy of a particle is given by :  U = mgh Where, m = mass…

Q: A boy lifts a 100 N rock 1 m high. What work does he do in Joules? In ergs? The boy has to exert a…

A: Given  weight of rock(w)=mg=100 N height(h)=1 m Required work done(w)=?

Q: 11. A man uses a horizontal force of 200N to push a crate up a ramp 8m long that is 20° above the…

A: Work done by the man           =  Horizontal force ×distance travelled          =200…

Q: How much work was done on him by gravity?

A:

Q: "20 kg bear slides, from rest, 10 m down a Lodgepole Pine tree, moving with a speed of 5.6 m/s just…

A: Potential energy can be considered as the energy based on the position of an object. If the height…

Q: Suppose you carry a bag of groceries weighing 100 N from your car to your kitchen, a distance of 59…

A: Force "F"= 100N  Distance "d"= 59 m   We know work = force× distance × cos∅

Q: 4. A 250-N force accelerates a 25.0-kg crate from rest along a horizontal frictionless surface for a…

A:

Q: 4 An object moves along the line segment from (0, 0,0) to (3, 6, 10), subject to the force F=…

A: Given:Force,F=(x2,y2,z2)Line segment from (0,0,0) to (3,6,10) Find the work done.Now,Work done…

Q: 3. A block attached to a spring, as shown in the Figure, starts at rest with the spring unextended…

A: The work done by the spring will be equal to the potential energy of the spring when it is stretched…

Q: 8. A block is moving with 52.0 J of KE. A 12.0N force pulls the block straight forward for 3.00 m.…

A:

Q: Q13: A 4 kg mass is projected down a rough ( shown. )circular track (R = 2 m) as The speed of the…

A: R = 2 m mass (m) = 4 kg vA = 4 m/s vB = 6 m/s

Q: A warehouse worker lifts a 10 kg box a half a meter. How much work has the worker done? (Assume g =…

A: Given, Mass of box, m= 10kg, distance, d=12m=0.5 m, and g= 10 m/s2.

Q: A man climbing a mountain carryig a bag with mass 7.5 kg, after 30 min he reach 8.2 m height from…

A: Mass of the bag m=7.5 kg Weight of the bag Wb=mg Displacement of the bag h=8.2 m The work done from…

Q: (Figure 1) is the potential-energy diagram for a 500 g particle that is released from rest at A.…

A:

Q: Starting from rest a 65.0-kg65.0-kg skier skis down a slope 8.00×102 m8.00×102 m long that has an…

A: Frictional forces are non-conservative forces which depends upon the path. Potential energy is the…

Q: 13. •• IP To clean a floor, a janitor pushes on a mop handle with a force of 50.0 N. (a) If the mop…

A: Given data: The force applied is F=50 N. The angle with horizontal is θ=55°. The distance traveled…

Q: 2. Three blocks with masses m; = 4.31 kg, m; = 8.73 kg, and m, = 17.2 kg, respectively, are attached…

A: Given: Mass of block 1, m1=4.31 kg mass of block 2, m2=8.73 kg Mass of block 3, m3=17.2 kg Frtiction…

Q: I Review I Constants An 8.5 kg crate is pulled 5.4 m up a 30° incline by a rope angled 19° above the…

A:

Q: In pulling two identical carry-on bags through the airport, Mr. Beall and his 7 year o son, James,…

A: James uses a greater force because he is shorter, making a smaller angle with the ground

Q: Q13: A 6 kg mass is projected down a rough ( shown. )circular track (R = 2 m) as The speed of the…

A: (13) Write the given values with the suitable variables. Mass m=6 kg Radius R=2 m Speed at point A…

Q: A 100-g ball is falling through syrup in a glass at a speed of 1.0 cm/s. How much work is done by…

A: Given, mass of ball: m=100 g=0.1 kg speed of ball: v=1.0 cm/s=0.01 m/s distance covered by ball:…

Q: A helicopter lifts a 100kg crate straight up via cable, with an acceleration of 0.8m/s2. If the…

A: Given data The mass of the crate is m = 100 kg. The acceleration of the cable is a = 0.8 m/s2. The…

Q: Spiderman, whose mass is 78.0 kg, is dangling on the free end of a 12.4-m-long rope, the other end…

A:

Q: A tennis player hits a 58.0 g tennis ball so that it goes straight up and reaches a max height of…

A: Given data The mass is m=58 g The height is h=8.09 m The work done by the gravity on the  the ball…

Q: A worker lifts a 20.0-kg bucket of concrete from the ground up to the top of a 30.0-m tall building.…

A:

Q: 1a) A 4.1 "kilo" bag of sugar is on a counter. How much work is required to put the bag on a shelf a…

A: ...

Q: 8. A 110-kg football player does a chin-up by pulling himself up by his arms an additional height of…

A: Given values: Mass, m=110 kg Height from the floor, h=50.0 cm Number of chin-ups, n=25 Acceleration…

Q: 2 A certain automobile has a mass of 1200kg. a. How much work is required to increase the speed the…

A:

Q: A man claiming a mountain carrying a bag with mass 7.5 kg, after 30 min he reach 8.2 m height from…

A: Given data *The mass of the bag is m = 7.5 kg *The given time is t = 30 min *The height from the…

Q: 1.A force of Si + j+ 2k N displaced a body from a position of i+j+km to 2i+4j+ 6k m. How much work…

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

Q: Give an example of a situation in which there is a force and a displacement, but the force does no…

A: Work is a dot product of force acting on an object and the displacement due to the applied force in…

Q: the total work is done on Anna

A:

Q: In 1990 Walter Arfeuille of Belgium lifted a 281.5-kg object through a distance of 17.1 cm using…

A: Work done by a constan force is given by W=F→.S→W=FScosθWhere θ is the angle between F→and S→.

Q: 6. Shock absorber A heavy-duty shock absorber is compressed 2 cm from its equilibrium position by a…

A:

Q: 2 kg mass is projected down a rough circular track (R = 2m) as shown. The speed of the mass at point…

A:

Q: Question on Physics - Unit - Work and Energy A cat with a mass of 5.0kg is chasing a mouse with a…

A: cat with a mass of 5.0kg is chasing a mouse with a mass of 35g. The mouse is runningaway from the…

Q: 4. A 5.0-kg block moves in a straight line on a horizontal frictionless surface under the influence…

A:

Q: After hitting a long fly ball that goes over the right fielder's head and lands in the outfield, the…

A: After hitting the third base and player comes to rest due to friction the following consideration…

Q: 7. A balky cow is leaving the barn as you try harder and harder to push her back in. In coordinates…

A: Initial position of cow = 0 m Final position of cow = 6.9 m F(x) =-[ 20 N + (3Nm x) ]

Q: 64. When released, a 100-g block slides down the path shown below, reaching the bottom with a speed…

A: It is given that, m=100 gvf=4 m/s

Q: A 3.00-kg crate starting at rest slides down a rough 7.00-m-long ramp, inclined at 25.0° below the…

A:

Q: If we know that a force of 5 N acts on an object while it moves 2 meters, can we calculate how much…

A: Force exerted on an object = 5 N Distance moved by object = 2 m

Q: (I) The head of a hammer with a mass of 1.2 kg is allowed tofall onto a nail from a height of 0.50…

A: Work done by a force F in displacing an object by some distance d is given as: W=F.d=Fdcosθ, where θ…