So I know there is 4 different equationsfor kinematics. Can you pick the problems that use...
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 5.6 m/s2 for 3 seconds. It then continues at a constant speed for 7.8 seconds, before applying the brakes such that the car’s speed decreases uniformly coming to rest 178.16 meters from where it started. The yellow car accelerates uniformly for the entire distance, finally catching the blue car just as the...
can someone help me solve this? Write down relevant equations, draw diagrams and show all of your work for full credit. 1. (20 points) A car starting from rest travels 220 m in 9.4 seconds with a constant acceleration. It then travels at a constant speed for another 12 seconds. After that, the brakes are applied and the car comes to rest an acceleration of 6.5 m/s2. A) Draw the motion diagram for the entire trip. B) What direction is...
(20 points) A car starting from rest travels 220 m in 9.4 seconds with a constant acceleration. It then travels at a constant speed for another 12 seconds. After that, the brakes are applied and the car comes to rest an acceleration of 6.5 m/s2. A) Draw the motion diagram for the entire trip. B) What direction is the acceleration when the car is coming to rest? C) List all known variables with their values. D) What is the acceleration...
Chapter- 2. Kinematics in One-Dimension I. A car is traveling at 18. 5 m/s, and the driver notices that a traffic light just turned red. After the reaction time of the driver, 0.330 s later, the driver applies the brakes, and the car decelerates at 5.00 m/s2. Find the total stopping distance of the car, as measured from the point where the driver first sees the red light. (Hint: this distance is the sum of the two distances; one traveled...
→XCIO D Question 11 7.5 pts An object moves in the x direction only under a constant acceleration. It's acceleration is 3 m/s in the *x direction. It is originally moving at 14 m/s in the direction. How long does it take in seconds, to travel a displacement of 22 m in the ex direction? Hint: Find the velocity at this displacement similar to the last question, first. Question 12 7.5 pts Car 1 is at rest at a traffic...
A car accelerates from rest with a constant acceleration of 1.5m/s^2 for 14 seconds . the car then continues traveling at the constant velocity with the speed it achieved after the 14 seconds of acceleration . it travels at this constant velocity for an additional 25 seconds. how far did the car travel during this whole motion?
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 3.9 m/s2 for 4.7 seconds. It then continues at a constant speed for 10.2 seconds, before applying the brakes such that the car's speed decreases uniformly coming to rest 254.16 meters from where it started. The yellow car accelerates uniformly for the entire distance, finally catching the blue car just as the...
please answer in TERMS of vi, vf, a, t, and x please help with #3, #4, and #5! Much appreciated!!! An accelerating object travels 12 meters from rest in a certain time. How far in meters could it have traveled from rest in the triple time? 2. An object moving along the x-axis initially has a velocity of 60 m/s and is slowing down at the rate of 4 m/s per second. How far (in meters) will it travel before...
1. A car starts from rest and travels for 8.0 s with a uniform acceleration of +1.8 m/s2. The driver then applies the brakes, causing a uniform acceleration of −1.5 m/s2. If the brakes are applied for 2.0 s, determine each of the following. (a) How fast is the car going at the end of the braking period? (m/s) (b) How far has the car gone? (m) 2. A ball is hit with a paddle, causing it to travel straight...
Solve exactly if possible. Express all decimals to 4 significant figures. 1) 2) 3) 4) 5) 6) 7) What are Newton's Laws of motion? What is a "frame of reference"? What is a coordinate system? Express the point x-3, y-4 using polar coordinates. What is the SI unit for force? How is it defined using SI base units? What are the four fundamental forces in the universe? What is the approximate gravitational acceleration, g, near the Earth's surface? If this...