You raise a bucket of water from the bottom of a deep well. If yourpower output is 108 W, and the mass of the bucket and the waterin it is 5.00 kg, with what speed can you raise the bucket? Ignorethe weight of the rope.

Q: A boy weighing 350N climbs up the 30steps, each 20cm high in 1 minute. Calculate (a) the work done…

A: Given,

Q: How long will it take an 850-kg car with a useful power output of 40.0 hp (1 hp equals 746 W) to…

A: Use work energy theorem

Q: of work. Assuming that you weigh 800 N, how high could the engine lift you?

A:

Q: A power mower does 8 x 104 J of work in 0.4 h. What power does it use?

A: Work done, W = 8 x 104 J = 80000 J Time taken, t = 0.4 h = 0.4 x 3600 s = 1440 s   Power of the…

Q: Your gasoline engine has a limited supply of gasoline, able to do 5000 J of work. If you weigh 800…

A:

Q: A 220-kg motorcycle is cruising at 14 m>s. What is the total work that must be done on…

A:

Q: It takes a force of 35.17 Newtons to stretch a 34-cm spring to 81-cm and hold it there. How much was…

A:

Q: What is the minimum work needed to push a 950 kg car 710 m up along a 19.0° incline? Ignore…

A:

Q: you raise a bucket of water from the bottom of a deep well. If your power output is 108W, and the…

A: Output power,

Q: A 50lb is lifted, at a constant rate, to a height of 10 feetfrom the ground. Compute the work…

A:

Q: Can the power expended by a force be negative?

A: The rate of doing work is known as power.

Q: Q.7. A crane lifts a load of 6000N through a vertical distance of 15m in 30s. Find the average…

A: Write the formula for the work done.

Q: At an amusement park, a swimmer uses a water slide to enterthe main pool. If the swimmer starts at…

A:

Q: How long will it take a 751-kg car with a useful power output of 57.5 hp (1 hp equals 746 W) to…

A:

Q: Calculate the power output needed for a 950-kg car to climb a 2.00º slope at a constant 30.0 m/s…

A: given mass, m = 950 kg f =  600 N  angle, A = 2 degree  v = 30 m/s

Q: Find the WORK done to empty a conical tank 25 ft in diameter and 20 ft high, which is filled to 15…

A: Diameter of conical tank dF= 25 ft Height = 25 ft Weight density ρg = 50 lbs/ft³ Where we assumed ρ…

Q: What is the efficiency of a subject on a treadmill who puts out work at the rate of 106 W while…

A: It is given that power input ≡oxygen consumption of 2L/m ≡700W power output = 106 W

Q: Calculate the power output in watts and horsepower of a shot-putter who takes 1.20 s to accelerate…

A:

Q: Calculate the power output of a 15 mg fly as it walks straight up a windowpane at 2.0 cm/s.

A:

Q: A body of mass m slides a distance d down alom uch work is done by gravity?

A: We know that the let the mass of the body is m and it slide a distance d in the downward direction…

Q: What is the work needed to lift 15kg of water from a well 12m deep ? Asume the water has a constant…

A:

Q: How fast can a motor lift a 20kg object to 10m if the power produced ia 1000W?

A: POWER = F.V   F= m g h  = 20 x10 x 10 = 2000 N P= 1000W M=20 Kg

Q: How much energy iç needed when starting wTth a patient 5 meters From rest Ts pushed at a distance at…

A: Given: The mass of the object is 60 kg. The displacement is 5 m. The acceleration is 0.4 m/s2

Q: When doing a chin-up, a physics student lifts her 420N body a distance of 0.25 meters in 2 seconds.…

A: Recall, Power=W/t And Work done=mgh

Q: If a 1814KG car crashes on water barrel at 27.8m/s . How much force is being applied to the barrel…

A:

Q: How much energy is required to propel a 60.0 KG person to 45.2 cm vertically? What is the person's…

A: Given data: Mass (m) = 60.0 kg Height (h) = 45.2 cm = 0.452 m Required: Energy and take off speed

Q: opiananTne Force required to compress a non-standarcl spring SVod AdısPiacement From equilibrium X…

A:

Q: vertically

A: The total amount of work done per unit of time is termed as power. Power is defined as the rate at…

Q: What is the work done by a body when it has zero velocity?

A: If it is moving horizontally without friction (or other opposition like air drag), zero work because…

Q: A 380-kg piano slic from accelerating E llel to the incline (F ted by the man, - done by the man o…

A: We know tha the we have given that the mass of the piano is m and it slide from d =  3.9 m down with…

Q: A warenouse wonar uses a forclifier to raise a crate オ0 The combined mass of the piattorm and the…

A: We know that  Power = Energy/(time taken) Here, Energy is Potential Energy i.e. Energy =m×g×h Energy…

Q: The engines of an airplane exerts a force of 4,000 lb when traveling with a constant velocity of 300…

A: The equation for power is given by Here, F is the force and v is the velocity. Substituting the…

Q: What is the minimum work needed to push a 950 -kgkg car 800 mm up along a 9.5 ∘∘ incline? Ignore…

A: Given: Mass of car m=950 kg Inclination angle θ=9.5° Distance through which car is pushed  S=800…

Q: What average power would a 1000 kg speedboat need to go from rest to 20.0 m/s in 5.00 s, assuming…

A: Given mass, m=1000 kg  Initial velocity, u=0 m/s  Final velocity, v=20 m/s

Q: now much work does he do on the crate?

A: We know the work done W=F. d------------------(1) ANS: The work done is 919.24 N-m or 920 Joule.

Q: Calculate the work done in lifting a 500N barbell 2.2m above the floor?

A: Given:Weight of the barball = 500 NDisplacement of the barbell = 2.2 m upward