A car engine produces a constant power of P = 341 hp. The car and motor have a combined mass of m = 1830 kg. 1.) The car starts from rest, after t=5 seconds, what is the cars speed, you may assume no energy is required to spin the tires. 2.) Assume a dragster of mass m=1000kg can accelerate to cover 450 m and accelerate in 7.2 s from a dead stop, how much horsepower is the engine producing, assuming acceleration is constant?

A car engine produces a constant power of P = 341 hp. The car and motor have a combined mass of m = 1830 kg. 1.) The car starts from rest, after t=5 seconds, what is the cars speed, you may assume no energy is required to spin the tires. 2.) Assume a dragster of mass m=1000kg can accelerate to cover 450 m and accelerate in 7.2 s from a dead stop, how much horsepower is the engine producing, assuming acceleration is constant?

Similar questions

A cheetah can accelerate from rest to 7.4 m/s (about 17 m/h) in 1.1 seconds. How much average power does the cheetah generate during the acceleration phase of its motion if its mass is 51 kg?a) 1300 W. b) 1500 W. c) 1900 W. d) 2200 W. e) 2600 W.
5. Two people of the same mass climb the same set of stairs. Person A climbs the stairs in 25 s. Person B climb the stairs in 35 s. a. Which person does the most work? Explain your answer b. Which person produces more power ? Explain your answer
A 899 kg car accelerates from rest up to 26.0 m/s in 6.14 s. What is the average power output of this engine during this time? Number Units (for comparison information there are 746 W for each horse power )
ACTIVITY 1 Problem Solving Power Rating Power is the rate of doing work. Power depends on the amount of work done in a specific time. It is measure in joules/second or watts which is the SI unit. Horsepower often used in measuring power of machines but is not an SI unit. One horsepower is equivalent to 750 watts. Read, analyze, and solve the following problems using the GUFSA template. Show your complete solution. Round off your final answer to the nearest hundredths. 1. A piano mover pushes a piano with a force of 200 N, moving it 12 m in 15 s. With how much power does the piano mover need to push?
A bicycler is moving at 8m/s when they reach the top of a 20m high hill. They coast 15m to the bottom of the hill. They are moving 15m/s when they reach the bottom of the hill. The combined mass of the bicycler and the bicycle is 95kg. a. Calculate the work done by friction on the bicycler. b.Calculate the magnitude of the force of friction acting on the bicycle.
How fast would a 30-kg kid need to run in order to have the same kinetic energy as an 8.0-g bullet fired at 400 m/s, in m/s? Your answer needs to have 2 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.
9. Consider a 59kg volleyball player who is jumping to spike the ball. Her 0 position is the bottom of the squat. At take-off, she has 320 J of kinetic energy and 580 J of potential energy. a. How high is her COM at takeoff? b. How fast is she going when she takes off? c. What will the height of her COM be at the highest point of the jump?
An elevator is designed so that when it travels upward, it has constant acceleration from rest to its cruising speed of 2.0 m/s in a time of 4.0 seconds. The elevator has a mass of 625kg. Assume friction is ignored. A. Determine the average power (in W) of the elevator motor while its accelerating upward to its cruising speed. B. Determine the motor power (in W) when the elevator is moving upward at its cruising speed.
A cheetah can accelerate from rest to 7.4 m/s (about 18 m/h) in 1.8 seconds. How much average power does the cheetah generate during the acceleration phase of its motion if its mass is 51 kg?a) 1400 W. b) 1600 W. c) 1800 W. d) 2500 W. e) 2800 W.
I need help with 2a and 2b
A cheetah can accelerate from rest to 7.4 m/s (about 17 m/h) in 1.1 seconds. How much average power does the cheetah generate during the acceleration phase of its motion if its mass is 51 kg? a) 1300 W. b) 1500 W. c) 1900 W. d) 2200 W. e) 2600 W.
Q14. A 2 kg mass is projected down a rough circular track (R = 2m) as shown. The speed of the mass at point A is 4 m/s, and at point B, it is 6 m/s. How much work is done on the mass between A and B by the force of friction?