11. A cat has just caught a mouse and decides to impress his human b showing it to him. With a constant horizontal force of 3 N, the cat drags the mouse across the rug at a constant speed v. If the cat is using a power of 6W, what is the cat's speed? -3 m/s R :? m/s C 2 m/s D 3 m/s

11. A cat has just caught a mouse and decides to impress his human b showing it to him. With a constant horizontal force of 3 N, the cat drags the mouse across the rug at a constant speed v. If the cat is using a power of 6W, what is the cat's speed? -3 m/s R :? m/s C 2 m/s D 3 m/s

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter7: Work, Energy, And Energy Resources

Section: Chapter Questions

Problem 5PE: Calculate the work done by an 85.0-kg man who pushes a crate 4.00 m up along a ramp that makes an...

See similar textbooks

Related questions

Q: Find the power necessary to move a 28.5 kg block up a frictionless 32.5 degrees incline at 4.65 m/s?…

A: As per guidelines only first question is solved here. 3. Given, Mass, m = 28.5 kg Frictionless…

Q: A 1000 Kg truck has a power output of 40. 0 kilo watts. Find the time (seconds) needed to accelerate…

A: Mass of truck, M=1000kg Mass of load, m=100kg Initial speed of truck, u=40m/s Final speed of truck,…

Q: A donkey is pulling a sled at a velocity of 3.5 m/s. If the donkey’s power output is 890 W, what is…

A: Product of force and velocity leads us to power output of an object. P = F • v

Q: 2. What is the mass of a truck if its kinetic energy is 5500 J and travels at a speed of 65 km/h. 65…

A: Given. Mass = m velocity = 65 km/h V = 65*1000/3600 m/s. V = 18.055 mps.

Q: A child and sled with a combined mass of 52.5 kg slide down a frictionless hill that is 7.08 m high…

Q: Determine the power required for a 1150-kg car to climb a 100-m-long uphill road with a slope of 30°…

Q: A driving force of 200 N is needed for a car of mass 800 kg to travel along a level road at a speed…

Q: A force of 1500 N is applied in the direction of movement of a block that has moved 3 m. This…

A: (given) Force (F) = 1500 N Displacement (s) = 3 m Time (t) = 2 s…

Q: 11, A cat has just caught a mouse and decides to impress his human by showing it to him. With a…

Q: A6.60-kg block slides with an initial speed of 1.78 m/s up a ramp inclined at an angle of 29.4° with…

A: Distance the block slides coming to rest is 0.17m

Q: An object with a mass of 78.0 kg is pulled up an inclined surface by an attached cable, which is…

A: Consider the Figure shown below.

Q: A 1.00 kg rock at rest is lifted a distance 5.00m above the ground for 3.00 s. What is the Power…

A: mass of rock (m) = 1 kg height (h) = 5 m time taken (t) = 3 seconds

Q: Q40. Calculate the work done in moving a body of mass 50 kg through a height of 5 m. (g = 10mis) 250…

Q: A train weighs 16,000 KN. The train resistance is constant at 96,000 N.If 6000 hp are available to…

Q: A 57 kg woman athlete can generate a sustained specific power output of 5.0 W/kg. One training…

A: In this question we are given with a situation about a female athlete and we have to answer some…

Q: 30. John is riding an elevator. If John notes that the elevator travels upwards with a speed of 0.23…

A: mass (m)=75 kg acceleration due to gravity(g)=9.8 m/s2 speed(v)=0.23 m/s

Q: A 150 N force acting along an incline is pushing a 6.50 kg object 4.65 m up a 20.0 degree incline.…

A: Analyze the free body diagram. Consider the rightward direction along the incline plane to be…

Q: Compute for amount of power generated in each case Case 1: Pushing a 5 kg ball cart from a side of…

Q: A box with mass 5.00 kg starts sliding down a ramp (1.00 m long) which is inclined at an angle…

Q: A car of weight W is on an inclined road that rises by 100 m over a distance of I Km and applies a…

A: Given, weight of the car, W rise by, 100 m constant frictional force, W20 distance traveled 1 km…

Q: A sports car with a mass of 1,385 kg is at rest on a flat, horizontal road. 5.4 s later, that car is…

Q: An object with a mass of 78.0 kg is pulled up an inclined surface by an attached rope, which is…

A: (a)The free body diagram of the object is shown below. The amount of work required to pull the…

Q: 8. A dog team exerts a horizontal force to a sledge weighing 5000 N including load. It is pulled on…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A child slides down a snow‑covered slope on a sled. At the top of the slope, her mother gives her a…

A: From the law of conservation of energy,

Q: An Amazon warehouse forklift is fitted with a 2.5 HP motor to lift pallets to the highest shelf…

A: Given: Power of motor, P=2.5 HP Height from ground to lift pallet ., h=12 m Mass of pallet, m=1.2…

Q: 1 a 1550-kg car moving at a constant speed of (900 km/hr) Its takes (16,000W)to keep it on alevel…

A: SOlution: given that m =1550 v = 900 km / hr P= 16,000W angle = 35degree

Q: Calculate the power output in watts and horsepower of a shot-putter who takes 1.10 s to accelerate…

Q: How much power would be required to hoist a 48 kg couch up to a 26 m high balcony in 5.0 seconds?…

A: p=Et=mght

Q: 4) The total mass of the sled and the driver on it in the figure is 125 kg. The driver is moving up…

A: Explanation and solution shown in the picture below

Q: 1. A car of mass 800 kg moves at a constant speed of 36 km/hr up a 1 in 8 incline. The top of the…

A: g=Acceleration due to gravity=9.81 m/s2m=Mass of car=800 kgv=Velocity of car=36 km/hr=363.6 m/s

Q: A 89.6 kg box is pushed sideways with a 100.1 N force. The box slides 9.6 m in 14.7 s. What is the…

Q: 63.28 J

A: Refer attachment

Q: 1. How much power is required when using a 12 N force to push an object at a velocity of 3 m/s?

A: Given data : Force "F"= 12N Velocity "v"= 3m/s

Q: A 5.0-kg object is pulled along a horizontal surface at a constant speed by a 20 N force acting 37°…

Q: A lift motor has to move a fully laden lift 4.59 m between floor 1 and floor 2. The lift has a mass…

A: Given: The vertical height is 4.59 m. The mass of the lift is 2150 kg. The time iterval is 2.41 s.

Q: A crane lifts a 268 kg crate a height of 12.4 m in a time of 80.0 s at a constant speed. What is the…

A: Given data: Mass (m) = 268 kg Height (h) = 12.4 m Time (t) = 80.0 s Required: The power (P)

Q: The resistance to the motion on the automobile depends on road friction, which is almost independent…

Q: 6. A boy pulls a sled with a mass of 20 kg horizontally over a surface with a coefficient of sliding…

Q: If 10.00 hp are required to drive a 2,000-kg automobile at 80 km/h on a level road, what is the…

A: Given : Power, P = 10.00 hp mass, m = 2000 Kg Velocity, v = 80 Km/h Find : Total retarding force…

Q: A block with a mass of 50 kg is dragged on a rough, horizontal surface by a force of 20.0 N at an…

A: Option (A) is correct. Detailed explanation is shown in the attached images.

Q: **70. A 1900-kg car experiences a combined force of air resistance and friction that has the same…

A: if we assume that the power needed to move up hill is Pup and and Pdown is the needed to sustain the…

Q: Which requires more work: lifting a 50.0 kg crate a vertical distance of 2.0 meters or lifting a…

A: Given: M1=50kg M2=25kg h1=2m h2=4m Now, Work was done to lift 50 kg crate (2m). Work was done to…

Q: A loaded ore car has a mass of 950 kg and rolls on rails with negligible friction. It starts from…

A: Given that, mass of the ore car is 950kg and speed is 2.40m/sec in time 10.0sec and also angle is…

Q: How long does it take for a forklift with a useful power output of 980 watts, to raise a 100-kg…

A: Given data: Power (P) = 980 watts Mass (m) = 100 kg Height (h) = 2.0 m Required: Time (t)

Q: A dog can provide sufficient power to pull a sled with a 60 N force at a steady 2.0 m/s. Suppose the…

A: Given- Force(f1)= 60 N Speed(v1 )= 2m/s Force(f2)= 120 N

Q: 10. A small motor is used to operate a lift that raises a load of bricks weighing 1200 N to a height…

A: 10. Given : F = 1200 N h = 15 m t = 30 s

Q: Q4 mechanical energy is conserved. Why prove this? (Ignore air resistance.). Tick below As a rock…

A: The given problem can be resolved using the concept of conservation of energy. The mechanical energy…

Q: A motorbike engine can develop a power of 90000 W in order to keep a constant velocity of 30 m/s.…

Question

100%

11.
A cat has just caught a mouse and decides to impress his human by
showing it to him. With a constant horizontal force of 3 N, the cat
drags the mouse across the rug at a constant speed v. If the cat is
using a power of 6W, what is the cat's speed?
A. -3 m/s
B. -2 m/s
C. 2 m/s
D. 3 m/s

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

Give an example of a situation in which there is a force and a displacement, but the force does no work. Explain why it does no work.
A worker pushes a wheelbarrow with a horizontal force of 50 N on level ground over a distance of 5.0 m. 11 a friction force of 43 N acts on the wheelbarrow in a direction opposite that of the worker, what work is done on the wheelbarrow by the worker? (a) 250 J (b) 215 (c) 35 J (d) 10 J (e) None of those answers is correct.
Integrated Concepts (a) Calculate the force the woman in Figure 7.46 exerts to do a push-up at constant speed, taking all data to be known to three digits. (b) How much work does she do if her center of mass rises 0.240 m? (c) What is her useful power output if she does 25 push-ups in 1 min? (Should work done lowering her body be included? See the discussion of useful work in Work, Energy, and Power in Humans. Figure 7.46 Forces involved in doing push-ups. The woman's weight acts as a force exerted downward on her center of gravity (CG).
How much work is done by the boy pulling his sister 30.0 m in a wagon as shown in Figure 7.36? Assume no friction acts on the wagon. Figure 7.36 The boy does work on the system of the wagon and the child when he pulls them as shown.
A 6.50 102-kg elevator starts from rest and moves upward for 3.00 s with constant acceleration until it reaches its cruising speed, 1.75 m/s. (a) What is the average power of the elevator motor during this period? (b) How does this amount of power compare with its power during an upward trip with constant speed?
a shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 25 below the horizontal. The force is just sufficient to overcome various frictional forces, so the cart moves at constant speed, (a) Find the work done by the shopper as she moves down a 50.0-m length aisle, (b) What is the net work done on the cart? Why? (c) The shopper goes down the next aisle, pushing horizontally and maintaining the same speed as before. If the work done by frictional forces doesnt change, would the shoppers applied force be larger, smaller, or the same? What about the work done on the cart by the shopper?
a shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 25 below the horizontal. The force is just sufficient to overcome various frictional forces, so the cart moves at constant speed, (a) Find the work done by the shopper as she moves down a 50.0-m length aisle, (b) What is the net work done on the cart? Why? (c) The shopper goes down the next aisle, pushing horizontally and maintaining the same speed as before. If the work done by frictional forces doesnt change, would the shoppers applied force be larger, smaller, or the same? What about the work done on the cart by the shopper?
A car accelerates uniformly from rest. Ignoring air friction, when does the car require the greatest power? (a) When the car first accelerates from rest, (b) just as the car reaches its maximum speed, (c) when the car reaches half its maximum speed. (d) The question is misleading because the power required is constant. (e) More information is needed.
(a) Find the useful power output of an elevator motor that lifts a 2500-kg load a height of 35.0 m in 12.0 s, if it also increases the speed from rest to 4.00 m/s. Note that the total mass of the counterbalanced system is 10,000 kg—so that only 2500 kg is raised in height, but the full 10,000 kg is accelerated. (b) What does it cost, if electricity is $0.0900 per kW h?
(a) What is the average useful power output of a person who does 6.00106 J of useful work in 8.00 h? (b) Working at this rate, how long will it take this person to lift 2000 kg of bricks 1.50 m to a platform? (Work done to lift his body can be omitted because it is not considered useful output here.)
Calculate the work done by an 85.0-kg man who pushes a crate 4.00 m up along a ramp that makes an angle of 20.0° with the horizontal. (See Figure 7.35.) He exerts a force of 500 N on the crate parallel to the ramp and moves at a constant speed. Be certain to include the work he does on the crate and on his body to get up the ramp. Figure 7.35 A man pushes a crate up a ramp.
A 6.50 102-kg elevator starts from rest and moves upward for 3.00 s with constant acceleration until it reaches its cruising speed, 1.75 m/s. (a) What is the average power of the elevator motor during this period? (b) How does this amount of power compare with its power during an upward trip with constant speed?