A 10,000 kg airplane must reach a velocity of 60 m/s to take off. If the ho rizontal force exerted by the engine of the plane is 60 KN and neglecting other horizontal forces 10. What is the length of the runway needed? 11. The maximum power transferred to the airplane
Q: A skier slides straight down an incline of 25 degrees without using her poles. The slope itself is…
A:
Q: Consider a 1,492 kg car cruising at constant speed of 59 km/h. Now the car starts to pass another…
A: Given,Mass of car m=1,492 kg initial speed u=59 km/hru=59 km/hr×518m/s1km/hr=16.39 m/scar has to…
Q: You drop a 2.50 kg book to a friend who stands on the ground at distance D-10.0 m below. If your…
A:
Q: Logan is standing on a dock holding onto a rope swing that is L = 3.70 m long and suspended from a…
A:
Q: A student weighing 551 N climbs at constant speed to the top of an 14 m vertical rope in 17 s. What…
A:
Q: I nees help on both problems. I don't know how to start.
A: a) Work done The expression for the force applied on the skier should be equal to the force due to…
Q: Suppose 65 passengers with an average mass of 75kg are transported by a ski lift to a height of…
A: Given: The number of passengers: n = 65. The average mass of a passenger: m = 75 kg. The height…
Q: When its 80 kW engine is generating full power, a small single-engine airplane with mass 750 kg…
A: Given data: Full power of engine (Pfull) = 80 kW Mass (m) = 750 kg Speed (v) = 2.5 m/s Required:…
Q: The 50-kg crate is at rest when a force P of 400 N acts on it as shown. Using the work and energy…
A:
Q: A car of mass m = 1200kg travels a distance A, = 2.2 km. At the beginning of the movement the speed…
A: Given that the car of mass m=1200kg moving initially with velocity v0=10m/s covers a distance…
Q: If the roller coaster car at the top of the 95.0 m drop hill has a speed of 2.25 m/s, (a) what will…
A: Step 1: Step 2: Step 3: Step 4:
Q: A 3500 lb SUV accelerates from 0 to 30 mph over a distance of 80 feet. Use work and energy to…
A: As per the work-energy theorem, Here, W, K, F, d, m, u, and v represent the force’s work, the car’s…
Q: A 618-kg elevator starts from rest and moves upward for 3.10 s with constant acceleration until it…
A: Given Data: The mass of an elevator is, m=618 kg The time required to move upward is, t=3.10 s The…
Q: A car with a mass of 900.0 kg climbs a 20.00° incline at a steady speed of 60.00 km/hr. If the total…
A: The steady speed of a car is, v=60 km/hr=16.67 m/s The total resistive or dissipative force acting…
Q: A box is pushed horizontally though a displacement of 4.4 metres by a force of 61 Newtons.…
A:
Q: A child is a the top of a treehouse 4.20 m above the ground. She is lifting a bucket of snacks via a…
A: Given data The height of the treehouse from the ground is d = 4.20 m. The mass of the bucket of…
Q: Dr. Frankenstein is pushing a loaded Aldi’s cart through a grave- yard collecting parts for his…
A: F=300 Nx=5 mm=85 kgv=0.8 m/s
Q: A 1.90 kg snowball is fired from a cliff 13.5 m high. The snowball's initial velocity is 15.8 m/s,…
A:
Q: A 4.9 g marble is fired vertically upward using a spring gun. The spring must be compressed 9.2 cm…
A:
Q: Using energy considerations, calculate the distance the 65.0-kg baseball player slides,given that…
A: The initial kinetic energy of the system is
Q: A 684-kg elevator starts from rest and moves upward for 4.20 s with constant acceleration until it…
A: Given: The mass of the elevator is m=684 kg, The cruising speed is vf=1.79 m/s. The time is t=4.20…
Q: A 1.10 kg snowball is fired from a cliff 12.9 m high. The snowball's initial velocity of 14.0 m/s,…
A:
Q: Suppose a pendulum bob is swinging back and forth. If the highest point is 12.5 cm above the lowest…
A: Recall conservation of mechanical energy KEi+PEi=KEf+PEf
Q: Is disregarding any frictional or air resistance forces. (a) What will the gravitational potential…
A:
Q: A car climbing up a hill at constant speed of X m/s. Given the car is going up a slope of 5 degree…
A: The mass of the car, The inclination of the plane, The power of the engine, The frictional force,
Q: A 694-kg elevator starts from rest and moves upward for 2.80 s with constant acceleration until it…
A: Data Given , Mass of the elevator ( m ) = 694 kg Elevator starts from rest , means Initial velocity…
Q: TRUE OR FALSE- I WILL GIVE QUICK RATING! The lines in the figure below show the equipotential…
A:
Q: A crate is given a push across a horizontal surface. The crate has a mass m, the push gives it an…
A: Given mass of the crate = m Initial speed = 3.30 m/s Coefficient of kinetic friction = 0.115 We…
Q: When an automobile moves with constant speed down a highway, most of the power developeu Dy the the…
A: GIVEN:A car moving down a highway with a speed of 25m/s and has a 205 horsepower engine. 1hp=746W…
Q: A 607-kg elevator starts from rest and moves upward for 3.90 s with constant acceleration until it…
A: Solution: given that m = 607 kg t = 3.9 s v = 1.67 m/s
A 10,000-kg airplane must reach a velocity of 60 m/s to take off. If the horizontal force exerted by the engine of the plane is 60 kN and you neglect other horizontal forces, what length of run- way is needed? the maximum power transferred to the airplane?
Step by step
Solved in 4 steps with 6 images
- Do it asap.Calculate the average power necessary for a 55.8 kg person to run up a 5.0 m high, sloped hill, in 3.00 s.A 5.4 g marble is fired vertically upward using a spring gun. The spring must be compressed 7.1 cm if the marble is to just reach a target 26 m above the marble's position on the compressed spring. (a) What is the change AUg in the gravitational potential energy of the marble-Earth system during the 26 m ascent? (b) What is the change Us in the elastic potential energy of the spring during its launch of the marble? (c) What is the spring constant of the spring?
- You drop a 1.50 kg book to a friend who stands on the ground at distance D= 12.0 m below. If your friend's outstretched hands are at distance d = 1.30 mabove the ground (see the figure), (a) how much work W, does the gravitational force do on the book as it drops to her hands? (b) What is the change AU in the gravitational potential energy of the book-Earth system during the drop? If the gravitational potential energy Uof that system is taken to be zero at ground level, what is U (c) when the book is released and (d) when it reaches her hands? Now take U to be 100 J at ground level and again find (e) W, (f)AU. (g) U at the release point, and (h) U at her hands. (a) Number Units (b) Number Units (c) Number Units (d) Number Units (e) Number Units (f) Number Units (g) Number Units (h) Number Units >A 1300-kg elevator carries a maximum load of 750 kg. A constant frictional force of 3000 N retards its motion upward. What minimum power, (in horsepower), must the motor deliver to lift the fully loaded elevator at a constant speed of 3.50 m/s? 1 horsepower = 746 WMelinda is pushing a chair along a 5 meter straight path through her living room. She is standing, pushing at the top of the chair with a force of 30 newtons at a 22° angle of depression from the horizontal. (a) Calculate the work done in moving the chair. (b) How could Melinda re-arrange herself to make the energy use more efficient?
- A child on a sled is pulled by using a rope that makes an angle of 40° with the horizontal. Determine the work done if the tension in the rope is 75 N and the horizontal distance moved is 30 m.A 3.6 g marble is fired vertically upward using a spring gun. The spring must be compressed 2.9 cm if the marble is to just reach a target 18 m above the marble's position on the compressed spring. (a) What is the change AU in the gravitational potential energy of the marble-Earth system during the 18 m ascent? (b) What is the change AU in the elastic potential energy of the spring during its launch of the marble? (c) What is the spring constant of the spring? (a) Number (b) Number ogres (c) Number Units Units UnitsA 2 kg object initially at rest is pushed along a frictionless surface by a constant force of 10 N for a distance of 5 meters. Calculate the work done on the object and its resulting final velocity.
- If the hand does 40 J of work on the 2.5 kg cart, how fast will it travel? If the person does 480 J of work on the 32kg box to move it at a speed of 4 m/s, how much energy is dissipated due friction? If the spring is compressed 12 cm and has a constant of 860 N/m, how high will the 1.3 kg chicken go?Use the values given in the problem. How much work does the weightlifter do?Use the values given in the problem. How much work does the cable do?You drop a 2.50 kg book to a friend who stands on the ground at distance D-13.0 m below. If your friend's outstretched hands are at distance d-1.60 m above the ground (see the figure), (a) how much work W, does the gravitational force do on the book as it drops to her hands? (b) What is the change AU in the gravitational potential energy of the book-Earth system during the drop? If the gravitational potential energy U of that system is taken to be zero at ground level, what is U (c) when the book is released and (d) when it reaches her hands? Now take U to be 100 J at ground level and again find (e) W. (f) AU, (g) U at the release point, and (h) U at her hands. 10000 ElIf a 1300 kg car can accelerate from 30 km/h to 65 km/h in 4.0 s , how long will it take to accelerate from 65 km/h to 95 km/h ? Assume the power stays the same, and neglect frictional losses.