subject
Physics, 04.03.2021 01:50 lolll52

A toy car with a mass m is accelerated in a hallway with a force that varies uniformly from 0 Newtons to three times the weight of the car over a timet. At that point, the engine shuts down, and the car continues to travel at a constant
speed along the hallway for a time equal tot.
This hall can be considered to be frictionless from the start of the trip to this position. After time 2t has passed, the
car reaches a rough surface with a force of friction equal to 0.5 mg and continues along this surface until timet
when the car comes to rest.
a. Create a graph of Force vs. Time for the entire trip of the car.
b. Calculate the impulse given the car by the engine during the time when the force acts, t.
c. Calculate the momentum lost by the car during the time when the force of friction is acting.
d. Calculate the total time until the car stops.

ansver
Answers: 3

Another question on Physics

question
Physics, 22.06.2019 01:10
The x-coordinate of a particle in curvilinear motion is given by x = 3.1t3 - 4.9t where x is in feet and t is in seconds. the y-component of acceleration in feet per second squared is given by ay = 2.3t. if the particle has y-components y = 0 and vy = 5.0 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 1.8 sec. sketch the path for the first 1.8 seconds of motion, and show the velocity and acceleration vectors for t = 1.8 sec. answers: v = ft/sec a = ft/sec2
Answers: 2
question
Physics, 22.06.2019 09:10
Which lists the organs in the correct order as food passes from the mouth to anus?
Answers: 1
question
Physics, 22.06.2019 17:30
Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.
Answers: 1
question
Physics, 22.06.2019 19:40
22. the top of a cliff is located a distance h above the ground. at a distance h/2 there is a branch that juts out from the side of the cliff, and on this branch a bird's nest is located. two children throw stones at the nest with the same initial speed, one stone straight downward from the top of the cliff and the other stone straight upward from the ground. in the absence of air resistance, which stone hits the nest in the least amount of time?
Answers: 1
You know the right answer?
A toy car with a mass m is accelerated in a hallway with a force that varies uniformly from 0 Newton...
Questions
question
Mathematics, 06.06.2020 07:57
question
Mathematics, 06.06.2020 07:57
question
Mathematics, 06.06.2020 07:57
question
Chemistry, 06.06.2020 07:57