A worker pushes a box that weighs 93 N which lies on a inclined plane. The worker push the box horizontally with an 85 N force. How much effort did that person put in ? How much effort was made gravity ? If mK =0,20, how much work does the friction force do ?

Q: In the figure, the rock weighs 130 lb and is lifted 1 ft by the lever. F Fulcrum 3F 3d (a) How much…

A: Given data: a)Force F=130lb    Distance d=1 ft b) Distance d=3 ft

Q: A person holds onto a 25 N object for 2 minutes 3 m above the ground. How much work is done on the…

A: We know, work done= Force x displacementBut here,  A person holds onto a object of weight 25 N is…

Q: An archer pulls a bow string back 0.40 meters by exerting a force that increases linearly from zero…

A: Given: The extension in the string is 0.40 m. The force exerted by the string is 460 N.…

Q: A 42 N horizontal force is applied to a 5.5 kg box. The box moves a horizontal distance of 650 cm.…

A: Mass of box , M= 5.5 kg Force applied onto it , F=42 N Distance moved by box in the direction of…

Q: traveler pulls on 15-kg carry-on luggage with a force F = 20 N angled at 40o above the horizontal…

A:

Q: The figure below shows a person pushing a box with a force of 8.2 N over a displacement of 4.5 m.…

A: The work done W by a force F→ in producing a displacement d→ is given by, W = F→·d→ = Fdcosθ where θ…

Q: A horizontal rope with 15 N tension drags a 25 kg box 2.0 m to the left across a horizontal surface.…

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: A girl with a heavy backpack wants to climb to the top of a hill. The path straight up the hill is…

A: Write the expression of work-done during climbing to the hill. W=F·s Here, F is force and s is…

Q: A 100 N box is slid on a horizontal frictionless surface by applying a 33 N force parallel to the…

A:

Q: An object is pulled along the ground by exerting a force of 45 pounds a rope that makes a 15° angle…

A:

Q: Another example of moving a couch at a constant speed, this person pushes down at an angle of 27.10…

A: Mass of object is m=25.7 kg Object moving at constant speed. The person pushes down the object at an…

Q: 6. A force of 20 Newtons is applied to an object at an angle of -35° with the horizontal. The object…

A:

Q: A man is pushing a lawnmower as shown in the diagram above with an angle of 0-30 below the…

A: Given data:  Angle (θ) = 30°,below the horizontal  Force (F) = 100 N Work done (W) = 1000 J…

Q: An electric elevator with a motor at the top has a multistrand cable weighing 6.5 lb/ft. When the…

A:

Q: To push a crate of mass 70 kg up a frictionless ramp with an angle of 25 ° to the horizontal, a…

A: Given: Mass of the crate, M=70 kg Angle of the ramp, θ=25° Force exerted by the worker, F=900 N…

Q: The graph below shows the force needed to stretch a spring. What work is needed to stretch it from 5…

A:

Q: across a fl88r. The force is directed at an angle upward from the crate so that the vertical…

A:

Q: If gravity is pulling a 0.15 kg ball down 2.0 meters, what is the magnitude of the force doing work…

A:

Q: John pulls his brother Andy on a icy surface ( no friction). The pulling force is 60 N and is…

A: Work done is given as the force times the displacement in the direction of force.

Q: A mountain climber is about to haul up a 90-m length of hanging rope. How much work will it take if…

A: Given: The length of the hanging rope is 90 m. The weight of the rope is 0.65 N/m.

Q: Jerry was told to mow the lawn. He pushed down on the lawn mower with 728 N of force with and angle…

A: Given Force F = 728 N Displacement S = 231 m θ = 650

Q: A boy pulls a 26.0-kg box with a 100-N force at 36° above a horizontal surface. If the coefficient…

A: Given Mass of a box = 26.0-kg Force applied on the box = 100-N force at 36° above a horizontal…

Q: he figure below shows a person lifting a box with a mass (m) of 13.5 kg a height (h) of 1.3 m.…

A: Given: The mass of the box is 13.5 kg. The height to which the box is lifted is 1.3 m.

Q: A person carries a 35.0 N rock through the path shown in the figure, starting at A point  and ending…

A: The work done by gravity is independent of the path, it only depends on the initial and the final…

Q: the force acts on an object, causing it to move parallel to the force. The graph in the figure shows…

A:

Q: The figure below shows a person pushing a box with a force of 2.2 N over a displacement of 2.5 m.…

A: The person exerts a force of 2.2 N on the box over a displacement of 2.5 mFrom Newtons third law of…

Q: A force of 12.0 N acts on a 4.6 kg object through a parallel distance of 1.6 m. How much work is…

A: Force  F=12.0 N mass of object  m=4.6 kg  The parallel distanace= d=1.6 m     Amount of work done on…

Q: A force of 16 lb is required to hold a spring stretched 2 in. beyond its natural length. How much…

A: Given data: Stretching force, F=16 lb Stretched distance, x=2 inch

Q: While riding on an elevator, a person has twoforces acting on him, a normal force and a gravity…

A: To determine,The magnitude of the normal force.Is the elevator speeding up or slowing…

Q: A crate is placed at the upper end of the 2.0 m long ramp that is inclined at 20° to the horizontal…

A: Given data: The length of ramp is L=2 m. The inclination of ramp is θ=20°. The mass of crate is…

Q: A 1080 kg car accelerates at a rate of 2.1 m/s/s over a distance of 18 meters. How much work was…

A: Given, mass of the car, m = 1080 kg acceleration of the car, a = 2.1 m/s2 distance traveled, d = 18…

Q: Tigure, weighs lever. F Fulcrum 3F 3d (a) How much work is done? ft-lb (b) The other end of the…

A: Given data: Mass of the rock m =200 lb Displacement d= 1ft