If the 80 kg cyclist took 3.00 m horizontal distance to reach 5. 20 m elevation above the ground. What is the average power output of gravity? What should be the initial speed of the cyclists so that his speed at 5.20 m elevation is zero

If the 80 kg cyclist took 3.00 m horizontal distance to reach 5. 20 m elevation above the ground. What is the average power output of gravity? What should be the initial speed of the cyclists so that his speed at 5.20 m elevation is zero

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.79P: The coefficient of rolling resistance between the 30-kg lawn roller and the ground is r=0.1. (a)...

See similar textbooks

Related questions

Q: Q3. The boundary of a system is fixed or movable and has mass but has no thickness and no volum fixe...

A: Q1) Classical thermodynamics is a macroscopic approach that does not require knowledge of the behavi...

Q: Steam at 6.2 MPa and 480 deg. C is received by a regenerative engine with ideal conditions and in an...

A: Given Data: Pressure P1=6.2 MPa Temperature, T1=480 C

Q: For the truss shown, determine the force in members BD, CD, and CE stating whether the member fore i...

Q: (4 blanks) An ice-making machine operates in a Carnot cycle. It takes heat from water at 0.0 °C and ...

Q: Q2. The conservation of energy principle states that; during interaction energy can transform from o...

A: As per conservation of energy energy can be transformed from one form to another but it will not des...

Q: 1. Using the Steam Tables, determine heat absorbed by the boiler (KJ) when subcooled water at pressu...

Q: 2. If the 80 kg cyclist took 3.00 m horizontal distance to reach 5. 20 m elevation above the ground....

Q: The continuous cable that wraps around the small pulleys at A, B, C, and D has a length of 8m. The s...

Q: Find the value of Pmax if the the

A: need to find Pmax

Q: Consider a W14x43 (Fy = 100 ksi) used as a compression member in a truss with Lc = 5 ft. What is the...

A: Find the strength of column about weak axis

Q: Three equal wheel loads of 50 kN each, separated by 2 m between each load, roll as a unit across a 9...

Q: What is the mass flow rate of airflow

A: To find mass flow rate of airflow

Q: Question 1: Express each of the three forces acting on the column in Cartesian vector form and compu...

A: GivenF1=150lbF2=275lbF3=75lb

Q: A uniform bar AB is resting in a horizontal position on smooth inclines as shown below. Determine th...

A: Given data Given force system of forces.

Q: Q1) An elevator car has a mass of (1600 kg) and is carrying passengers having a combined mass of (20...

Q: 2.20 Find the dynamic and kinematic viscosities of kerosene, SAE 10W-30 motor oil, and water at a te...

A: GivenSAE 10W-30 motor oil, kerosene and water at temperature T=38oC=100oF

Q: insulator has a thermal conductivity of 20 W/m ºC s used to separate two heat sinks whose temperatur...

Q: A pump has a 100 mm diameter suction pipe and a 75 mm discharge pipe. The capacity is 15 L/s of wate...

Q: The acceleration of a particle is given by a = 9t - 27, where a is in meters per second squared and ...

Q: Figure 2 shows a 0.8 m wide of rectangular sluice gate is hinged at point A on the wall of a reservo...

Q: Q = 0.05 m3/s P1 = 12.5 kPa P2 = 11.5 kPa P3 = 10.3 kPa Find HL (1-2) P2 2) - 50 mm 4 = 50 mm 10m P3

A: Calculated head loss HL(1-2) .

Q: The following test apparatus is used to test the resistance to wear between two materials A and B. T...

Q: Calcualte force applied

A: Given: Workdone is defined force in the direction of the displacement. i.e, W= F×DDisplacement is ...

Q: The line of action of force F1= 366 N is passing through point A(+2,+3,+1) towards B(+5,+5,+4), whil...

Q: What is the Force on the Bronze Material? * Bronze Aluminum Steel 2P 3P P 4P + 0.6 m→« - 0.8 m - 1.0...

A: Given data of various materials are : Change in length of the bar is limited to 2mm.

Q: The figure shown below (Fig. 2) is a schematic representation of a scissor jack in two different pos...

A: JACK A jack is a mechanical lifting gadget used to apply incredible powers or lift weighty burdens. ...

Q: A charge pump in a closed loop delivers 4 GPM. How much fluid is needed in the reservoir?

A: To find how much fluid is needed in the reservoir there is a rule that volume must be equal to 3 tim...

Q: A vapor compression cycle with R-134a is being used as its refrigerant. The refrigerant leaves the e...

Q: A spherical balloon is filled with Helium to a maximum diameter of 3 ft at a gage pressure of 8.78 i...

Q: A cantilever beam, 80 mm wide by 270O mm high and 8 m long, carries a load that varies uniformly fro...

A: Draw a diagram for the cantilever beam. Here, w1 is the load intensity at point B i.e. at 5 m from ...

Q: maximum output power from the Pelton wheel

A: Given: For a pelton wheel with a given water jet velocity, the maximum output power from the Pelton ...

Q: 2. A simple wooden beam, 50 mm wide by 250 mm deep and 7.5 m long has a maximum deflection of 102 mm...

A: Answer: The flexural stress is 27 MPa.

Q: 40 kN 60 kN 20° 4. The blocks are separated by a solid strut which is attached to the blocks with fr...

Q: 5. A short compression member with D, = 2D, is to support a dead load of 25 tons. The material is to...

Q: Given the folowing conditions: Q = 0.05 m3/s %3D P1 = 12.5 kPa P2 = 11.5 kPa P3 = 10.3 kPa %3D Find ...

Q: Determine the quantity (volume) of saline water in a steam generator. The heat energy of 1590 kJ is ...

Q: A tube with 45 meters long, and a diameter of 1.8 meters and 2.3 meters, inlet and outlet respective...

A: Given Data: Inlet diameter, d1=1.8 m Outlet diameter, d2=2.3 m Inlet velocity, V1=2100 m/min

Q: Q9. The rigid syste mmunicates with surroundings by energy only. O heat only. O mass and energy. O m...

A: Different types of systems in thermodynamics are: Open system Closed system Rigid system

Q: The cantilever beam carries a combination of a uniformly distributed load and a trapezoidal loading ...

Q: Determine the temper t the exit if the pressu may assume yelociky

Q: Water is flowing inside a pipe with a constant cross section. Calculate the total head loss. The ele...

A: Given Data: Elevation, h2=100 ft

Q: 49. Water flows at a rate of 200 GPM into a piping system connected in series. Length, diameter, and...

A: Since, pressure drop calculations and equivalent pipe diameter calculations are two different questi...

Q: A hollow cylindrical shaft, made of steel, with an outer diameter of = 25 cm and an inner diameter o...

A: Givenouter diameter D=25cm=250mminner diameter d=15cm=150mmspeed N=1000rpmτ=60N/mm2

Q: We have the plane stress state shown in the figure. You are asked to determine the stress components...

A: For solution refer below images.

Q: Determine the minimum width "b" of the beam shown if the flexural stress is not to exceed 13 MPa. An...

Q: An oil having a specific gravity of 0.87 is being pumped from a lower reservoir whose water surface ...

Q: Air at 10°C enters a 8 cm ID and 5 m long pipe at a rate of 3.5 kg/min. The inner surface of the pip...

A: Given data as per question Roughness =2mm Flow rate =3.5 kg/min Diameter of pipe =8 cm Length of pip...

Q: 9 Derive Equation 7.16, which gives the relationship between the nozzle loss coef- ficient , and noz...

Q: True or False: -A diverging nozzle makes the velocity of fluids quicker -The temperature from 11 KM...

A: 1).False,by using continuity equation,A1V1=A2V2,here for diverging section A2 increases hence the ve...

Concept explainers

Classification of types of corrosion

Corrosion is described as the process in which a certain element is degraded or deteriorated due to the presence of multiple chemicals in the surrounding. Generally, corrosion happens if all the subatomic particles on a metallic object are oxidized, for example, rust on iron structures. In air or water, metals lose electrons to other particles (like oxygen), leading to the formation of an oxide with the metal.

Question

NUMERO DOS

If the 80 kg cyclist took 3. 00 m horizontal distance to reach 5. 20 m elevation above the
ground. What is the average power output of gravity? What should be the initial speed of the
cyclists so that his speed at 5.20 m elevation is zero

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 2 images

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, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

A body with mass of 20 g starts moving (90 km/h) on a horizontal rough surface. If it stops after complete the distance of 50 m on a horizontal line, the surface’ force that affected on a body is
The 2-Mg car increases its speed uniformly from rest to 19 m/s in 28 s up the inclined road Part 1: Determine the maximum power that must be supplied by the engine, which operates with an efficiency of ϵ = 0.8 (figure 1) Part 2: Also, find the average power supplied by the engine
In 45 seconds, a 2.5-ton vehicle can reach 120 mph from rest. Exclude friction losses while calculating the engine's output.
An airplane has a mass of 25 Mg and its engines develop a total thrust of 40 kN during take-off. If the drag D exerted on the plane has a magnitude D= 2.25 v2, where is expressed in meters per second and D in newtons, and if the plane becomes airborne at a speed of 240 km/h, determine the length of runway required for the plane to take off.
A 16-lb shell has a velocity of 2000 ft/s when it leaves the barrel of a cannon. if the barrel is 10 ft, find the average force on the shell while its in the barrel.
At A, a 90-kg container begins at rest. When the cable is exposed to a continuous force of F-450N, determine its speed when it reaches point B. Also, what is the constant force if the speed of crate A is 7.5 m/s when passing through crate B? Neglect friction and the size of the pulley.
When the 3-kg box reaches point A it has a speed vA = 11 m/sm/s . Neglect friction and the size of the box. (Figure 1)
A constant force of ''F'' acts on a mass as shown. The mass starts its motion from rest at position 1, the unstretched length of the spring is 250 mm, and the spring modulus is k=1,5 k?/m. Neglecting the friction, determine the required force ''F'' to cause the 2−kg mass to have a speed of v2=1,5 m/s at position 2.
The 2.4-Mg car increases its speed uniformly from rest to 22 m/s in 38 s up the inclined road. (a) Determine the maximum power that must be supplied by the engine, which operates with an efficiency of ϵ = 0.8. Express your answer with the appropriate units. (b) Also, find the average power supplied by the engine. Express your answer with the appropriate units. Please use watts, not Mw for final answer.
Put a marble with the mass m = 4.5g into a jar with honey. The drag force F exerted by the box is exactly proportional to its velocity. 1) Determine the maximum speed vmax that the ball can attain. 2) Determine the progression of the magnitude of the ball's velocity v(t).
A trailer truck enters a 2 percent uphill grade traveling at 72 km/h and reaches a speed of 108 km/h in 300 m. The cab has a mass of 1800 kg and the trailer 5400 kg. Determine (a) the average force at the wheels of the cab, (b) the average force in the coupling between the cab and the trailer.
A 2404 lb car is moving up a 7 degree incline as shown. Determine how many seconds will it take for the car to decelerate from 105 ft/s to 35ft/s, if the braking force is equal to 52 lb assuming that deceleration is constant and frictional effects are neglected.