A top fuel dragster with a mass of 500.0 kg starts from rest and completes a quarter mile (402 m) race in a time of 5.0 s. The dragster's final speed is 130 m/s. Neglecting friction, what average power was needed to produce this final speed? Note: 1hp =746 Watts.
Q: Multiple-Concept Example 13 presents useful background for this problem. The cheetah is one of the…
A:
Q: A 1.50 x 103-kg car starts from rest and accelerates uniformly to 19.2 m/s in 11.7 s. Assume that…
A: Kinematics.
Q: If a 1300 kg car can accelerate from 30 km/h to 60 km/h in 3.9 s , how long will it take to…
A:
Q: When its engine of power 74 kW is generating full power, a small single-engine airplane with mass…
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:
Q: A 65.0-kg file cabinet of is sliding down a rough ramp for a distance of 5.00 m as shown. The…
A: To solve the problem we will use work-energy theorem. Given Data Mass of the cabinet is m=65.0 kg…
Q: Carter's 13.0 kg sister Meg sits on a rug. Carter pulls the rug across the floor using a rope that…
A:
Q: 3. A record was set for stair climbing when a man ran up the 2400 steps of the Empire State Building…
A: Given:- A record was set for stair climbing when a man ran up the n = 2400 steps. The time taken to…
Q: A crane lifts a 320 kg crate up a height of 4.5 m. The crane has a power rating of 2000 W. How much…
A: Given data The mass of the crate is given as m = 320 kg. The height up to which the crate lifts is…
Q: A car could accelerate from rest to 60 mi/hr (27 m/sec) using a 302 V8 in a time of 1.2 sec. If the…
A: solution
Q: Adam drove a bike 1260 m with an average speed of 115m/s. Suppose he applied the brakes to reduce…
A: According to the work-energy theorem, the work done by the brakes will be equal to the change in…
Q: 10. For the Atwood's machine shown. Initially mass m2 is moving upward with initial velocity 0.74…
A:
Q: A 57.7 kg teenager climbs stair to exercise as shown, Ay = 12.0 m. It is completed in 25.0 s. What…
A: Answer:- Given Mass (m) = 57.7 kg Height (∆y) = 12.0 m Time (t) = 25 .0 s Acceleration due to…
Q: an athlete lifts a barbell that weighs 400 N from the ground to a height of 2.20 m at a constant…
A: Given data: Weight (mg) = 400 N Height (h) = 2.20 m Time (t) = 1.60 s Required: The output power in…
Q: A frog jumps straight up at 0.7 m/s from 0.6 m above ground. How fast is it after it is about to…
A: Initial velocity = u = 0.7 m/s Initial height = h = 0.6 m Final height below the ground = h' = 0.8 m…
Q: A 46.9 kg teenager climbs stair to exercise as shown, Δy = 12.0 m. It is completed in 25.0 s. What…
A: Given: The mass of the student is 46.9 kg. The vertical displacement is 12 m. The time interval is…
Q: A 50.5 kg teenager climbs stair to exercise as shown, Δy = 12.0 m. It is completed in 25.0 s. What…
A: Given: Mass of teenager, m=50.5 kg Vertical height form ground, ∆y=12.0 m Acceleration due to…
Q: If a 1300 kg car can accelerate from 30 km/h to 60 km/h in 3.9 s , how long will it take to…
A: Mass of car, m = 1300 kg Velocities are, v1 = 30 km/h = 30*(1000m/3600s) => v1 = 8.33 m/s v2 =…
Q: A 52.8 kg teenager climbs stair to exercise as shown, Ay = 12.0 m. It is completed in 25.0 s. What…
A:
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 puppy lifts up his favorite toy with his mouth performing 500 J of work.in 1.5 seconds. What is…
A: given - work done by puppy = 500 J Time taken = 1.5 sec
Q: Calculate the power output in watts and horsepower of a shot-putter who takes 1.10 s to accelerate…
A:
Q: You push a 100 kg wheeled (frictionless) cart across a floor a distance of 13 m by applying a force…
A: Given data: Mass (m) = 100 kg Displacement (d) = 13 m Force (F) = 10 N Time (t) = 9 s Required:…
Q: A bowler tosses a ball without spin. The ball slides down the alley. At some point, friction with…
A:
Q: 4. An Olympic weightlifter snatches 100kg. In a snatch, the barbell is moved from a stationary…
A:
Q: A 1.50 x 10³-kg car starts from rest and accelerates uniformly to 16.6 m/s in 12.3 s. Assume that…
A:
Q: An electric engine in a 2.0 kg remote-control toy car has a power output of 4.0 W. How fast will it…
A:
Q: A car requires 72.8 hp to maintain a constant speed of 21.3 m/s on a straight, flat road. Assuming…
A:
Q: An elevator has a mass of 1160 kg and carries a maximum load of 612 kg. A constant frictional force…
A: Given data: Mass of elevator, me = 1160 kg Mass of load mL = 612 kg Frictional force, f = 3330 N…
Q: A car has an engine that produces constant power. The car is accelerated from rest at t = 0, and at…
A: The equation for power is given by, P=Fv Here, F is the force and v is the velocity. The force is…
Q: A 48.5 woman starts from rest at the bottom of a flight of stairs that has a total height of 2.56…
A:
Q: A car engine produces a constant power of P = 341 hp. The car and motor have a combined mass of m =…
A: Given, P = 341 hp=254284 watts m = 1830 kg t=5 seconds (1.) Using work energy theoremw=…
Q: A 2000 kg car with a 250 HP (1.865 X 105 W) engine accelerates from rest. If all the engine’s power…
A:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- A car accelerated from rest to a speed of 20 m/s in a time of 5.6 s. The car has a weight of 9000N. Determine the average power needed to accelerate the car.A 65.0-kg file cabinet of is sliding down a rough ramp for a distance of 5.00 m as shown. The friction force on the box is 75.0 N. The cabinet starts from rest. What is the final kinetic energy of the cabinet at the end of the ramp, in Joules? Use g = 10.0 m/s2. Your answer needs to have 3 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.A Ford F-150 pickup truck has a mass of 1950 kg. One truck is equipped with an Ecoboost 2.7 liter V6 engine that produces a useful power output of 242 kW. (a) How long in seconds does it take the truck to start from rest and reach a speed of 12.5 m/s, assuming no friction effects and it is traveling on a level road? (b) How long will it take to reach the speed of 12.5 m/s from rest, if the truck also climbs a hill that has a height of 2.75 m?
- The speed of a block moving on a horizontal frictional surface changes from vi = 15 m/s to vf = 12.5 m/s in a distance of d = 9.5 m. How long in seconds did it take for the block to slow by this amount, assuming the acceleration is constant? If the block has a mass of 1 kg, What is the power supplied to the block by friction? What is the coefficient of kinetic friction between the block and surface μk?A car speeds at 18 m/s. The force of resistance remains constant at 400.0 N during this time. What is the average power developed by the car's engine?A motorist driving a 1332-kg car on level ground accelerates from 20.0 m/s to 30.0 m/s in a time of 5.00 s. Ignoring friction and air resistance, determine the average mechanical power in watts the engine must supply during this time interval.
- (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?A 75 kg sprinter accelerates from 0 to 8.0 m/s in 5.0 s. What is the output power, in kW (kiloWatts)? Your answer needs to have 2 significant figure, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.A funny car accelerates from rest through a measured track distance in time 56 s with the engine operating at a constant power 230 kW. If the track crew can increase the engine power by a differential amount 1.0 W, what is the change in the time required for the run? Number i 8.1 Units S