a) What is the power output in watts and horsepower of a 73.0 kg sprinter who accelerates from rest to 10.1 m/s in 3.50 s? power in watts ____ W power in horsepower _____hp (b) Considering the amount of power generated, do you think a well-trained athlete could do this repetitively for long periods of time?

Q: A 710 kg car drives at a constant speed of 23 m/s. It is subject to a drag force of 500 N. What…

A: Given,mass of the car, m = 710 kgspeed of the car, v = 23 msdrag force, F = 500 Nslope of the…

Q: A student wearing frictionless in-line skates on a horizontal surface is pushed by a friend with a…

A: Given Data: The magnitude of a constant force is, F=47 N The final kinetic energy of a student is,…

Q: A transport truck driving at a constant speed of 84.6 km/hr on a flat stretch of highway must…

A:

Q: A bicyclist coasts down a 6.5 • hill at a steady speed of 3.5 m/s. Part A Assuming a total mass of…

A: Here, we calculate the given as follow;

Q: Which has more kinetic energy: a 0.0012 kg bullet traveling at 405 m/s or a 5.3 x 10^7 kg ocean…

A:

Q: A weighlifter lifts a 50-kg barbell a vertical height of 2.0 m in 5.0 s. What is the average power…

A:

Q: A 0.25-hp motor is used to lift a load at the rate of 5.0 cm/s. How great a load can it raise at…

A: Given: The power is 0.25 hp. The constant speed of the motor is 5 cm/s.

Q: A (6.40x10^1) kg woman runs up a flight of stairs in 5 s. Her net upward displacement is 5 m. What…

A: Given data:  Mass (m) = 6.40×101 kg Time (t) = 5 s Height (h) = 5 m Required: Power (P)

Q: A chauffeur driving a 1200-kg car increases her speed from 30 m/s to 40 m/s in 5 s. Determine the…

A: Power is defined as the work done per unit time: P = work donetime The work done to increase the…

Q: A transport truck driving at a constant speed of 83.7 km/hr on a flat stretch of highway must…

A: Given,  Speed of truck, v = 83.7 km/h Force required to overcome friction, F = 2,893 N Power…

Q: What is the shortest possible time for a forklift with a 2¾ horsepower lifting motor to raise a…

A:

Q: der the action of a force, a 2 kg body moves such that its t3 where x 3 position x as a function of…

A: Work done is defined as the product of magnitude of displacement d and the component of force in the…

Q: 300 J of work are required to fully drive a stake into the ground. If the average resistive force on…

A:

Q: A cheetah can accelerate from rest to 6.4 m/s (about 16 m/h) in 1.2 seconds. How much average power…

A:

Q: eded to move a 3000 lb car up an 8 degree incline with a constant speed of 50 mph against a…

A: GivenWeight of car, W=3000 lbAngle, θ=8°Speed of car, v=50 mphFrictional force, f=80 lbs

Q: A horse can provide sufficient power to pull a wagon with a 250 N force at a steady 3.0 m/s. Suppose…

A: Given data: Force of pulling first wagon (F1) = 250 N Velocity of first wagon (V1) = 3.0 m/s Force…

Q: what is the power required for a 55 kg student to run up a set of stairs that has a height of 20 m…

A:

Q: There is a Cathedral-of-Learning race in Pittsburgh in which participants run up and down the steps…

A:

Q: When a 1984 Alfa Romeo Spider sports car accelerates at the maximum possible rate, its motion during…

A:

Q: What average horsepower is developed by an 80 kg man while climbing in 10 seconds a flight of stairs…

A: The average power generated by a body can be defined as the energy the body uses or generates within…

Q: How long will it take a 844-kg car with a useful power output of 48.5 hp (1 hp equals 746 W) to…

A:

Q: A 1.50 × 10³ kg car accelerates uniformly for 15 m in 3.0 s. What is che power delivered by the…

A: given; m=1.50*103 kg s = 15 m t=3.0 s

Q: A transport truck driving at a constant speed of 83.3 km/hr on a flat stretch of highway must…

A:

Q: An 80-kg jogger that is initially running at 5.0 m/s uniformly accelerates to 8.0 m/s in a time of…

A: Mass of jogger = 80 kg  Initial speed of jogger = 5.0 m/s  Final speed of jogger = 8.0 m /s

Q: A carpet which is 6 meters long is completely rolled up. When xx meters have been unrolled, the…

A:

Q: A 56.5-kg person is running and accelerates from 3.67 m/s to 8.29 m/s in 5.67 s. How much power does…

A:

Q: The kinetic energy of a motorcycle and rider is 59,600 J. If their total mass is 322 kg, what is…

A: Given data The kinetic energy of the motorcycle is given as KE = 59600 J. The mass of both the…

Q: A transport truck driving at a constant speed of 87 km/hr on a flat stretch of highway must produce…

A:

Q: It takes 1.09 J of work to compress a spring 11.1 cm. What is the force constant of the spring in…

A:

Q: A lighter car and a heavier truck, each initially at rest, are pushed on a level surface with the…

A: They will have the same kinetic energy . Because both car and truck are pushed by same force and to…

Q: A 900-kg car cruising at a constant speed of 60 km/h is to accelerate to 100 km/h in 4 s. The…

A:

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

A:

Q: Procopio is driving a car (m = 1000 kg) at v1 = 11.11 m/s when he stepped on the brakes. The car…

A: mass, m = 1000 kg  initial velocity, u = 11.11 m/s final velocity, v = 0 m/s  distance, s = 15 m

Q: A roller-coaster car is pulled up to point 1 where it is released from rest. Assuming no friction,…

A: Given, Force at point 2 is F2 = 1000 N Force at point 3 is F3 = 2000 N Force at point 4 is F4 = 1500…

Q: A (5.00x10^1) kg woman runs up a flight of stairs in 5 s. Her net upward displacement is 5 m. What…

A: Given  Mass is m=50 kg Acceleration due to gravity is g=9.80 m/ s^2 Height is h= 5 m  Time taken is…

Q: Which of the following quantities has the same dimensions as kinetic energy, mv? Note: [a] = [g] =…

A: Dimensions of 1/2 mv2 = [M L2 T-2]

Q: A 12 kg object accelerates from rest to a speed of 15 m/s in 5.0 s. If this process is repeated for…

A: Given Data : The mass of the object is given as m = 12 kg. The final speed of the object is given as…

Q: A ball is thrown straight upward from the ground with an initial velocity of 15 m/s. Use the…

A: Given that, Initial velocity u=15 m/s Acceleration due to gravity g = 10 m/s2

Q: If a car generates 15.6 hp when traveling at a steady 96.1 km/hr, what must be the average force…

A: Steady velocity or uniform velocity is the velocity of an object moving without any acceleration ,…

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 kinetic energy of a motorcycle and rider is 59,600 J. If their total mass is 286 kg, what is…

A: The kinetic energy of an object of mass 'm' and moving with a speed v is given as:K.E=12mv2 It is…

Q: A small object with ?=0.0250kg is moving in the positive x-axis with velocity ??=12.0m/s. What…

A: K.E=12mv2 Work done = F*d F=force d=displacement m=0.0250 kg d=0.15 m v=12.0 m/s

Q: AND ENERGY WORK, POWER, A force in the +x-direction with magnitude F(x) = 18.0 N - (0.530 N/m)x is…

A: The magnitude of the variable force, F=18 N-0.530 N/mx Mass of the box, m=6.00 kg Initial velocity,…

Q: 1300-kg car is to accelerate from rest to a speed of 30 m/s in a time of 12.0 s as it climbs a 15.0…

A:

Q: Calculate the horsepower needed for a 1200-kg car to climb to an altitude of 1000 m from sea level…

A:

Q: A block of stone with a height of 2m, has a mass of 75 Kg. This stone is hauled along a horizontal…

A: