Question

In: Advanced Math

Two​ drivers, Alison and​ Kevin, are participating in a race. Beginning from a standing​ start, they...

Two​ drivers, Alison and​ Kevin, are participating in a race. Beginning from a standing​ start, they each proceed with a constant acceleration. Alison covers the last 1/9 of the distance in

7 seconds, whereas Kevin covers the last 1/7 of the distance in 9 seconds. Who wins and by how much​ time?

Solutions

Expert Solution


Related Solutions

4) A tortoise and hare start from rest and have a race. As the race begins,...
4) A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. The hare accelerates uniformly at a rate of 1.1 m/s2 for 4.1 seconds. It then continues at a constant speed for 13.7 seconds, before getting tired and slowing down with constant acceleration coming to rest 81 meters from where it started. The tortoise accelerates uniformly for the entire distance, finally catching the hare just as the hare comes to a stop....
A tortoise and hare start from rest and have a race. As the race begins, both...
A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. The hare accelerates uniformly at a rate of 1.2 m/s2 for 4.4 seconds. It then continues at a constant speed for 11.8 seconds, before getting tired and slowing down with constant acceleration coming to rest 81 meters from where it started. The tortoise accelerates uniformly for the entire distance, finally catching the hare just as the hare comes to a stop. 1)...
In a quarter-mile drag race, two cars start simultaneously from rest, and each accelerates at a...
In a quarter-mile drag race, two cars start simultaneously from rest, and each accelerates at a constant rate until it either reaches its maximum speed or crosses the finish line. Car A has an acceleration of 10.9 m/s2 and a maximum speed of 109 m/s. Car B has an acceleration of 11.8 m/s2 and a maximum speed of 93.7 m/s. (a) Which car wins the race? (b) By how many seconds does this car win the race?
Problem 6:   Two students are standing the same distance from a source of sound. The first...
Problem 6:   Two students are standing the same distance from a source of sound. The first student receives a power of 246 × 10-6 W in their eardrum. The second student receives σ = 1.17 times more power in their eardrum. Part (a) What is the ratio of the diameters of the student's eardrums? Part (b) If the second student's eardrum has a diameter of d = 1 cm what was the intensity of the sound that the student heard,...
Assume you are about to start your own business. What would you do from the beginning...
Assume you are about to start your own business. What would you do from the beginning to ensure that your employees will be satisfied and motivated?
In a demolition derby, two cars start from rest at opposite ends of a track. At...
In a demolition derby, two cars start from rest at opposite ends of a track. At exactly the same instant they begin to accelerate towards each other in a straight line. Car A accelerates at a rate of aA = 3.0 m/s2 , while Car B accelerates at a rate of aB = 4.0 m/s2 in the opposite direction. After 6.5 s the cars collide. Please use a coordinate system where Car A is travelling in the positive direction. a)(8...
Two masses, m and 2m are start from opposite edges of a frictionless hemispherical bowl of...
Two masses, m and 2m are start from opposite edges of a frictionless hemispherical bowl of radius R at the same time, and with zero initial speed. (Gravitational acceleration is g) (a) (4 Pts.) Where will they collide? (Explain your reason) (b) (6 Pts.) If they collide elastically head on, how high would 2m rise from the bottom of the bowl after the collision? (c) (10 Pts.) Now assume that the two masses are left from two points that are...
Two people start at rest from the same point on a circular track of radius R...
Two people start at rest from the same point on a circular track of radius R = 20 m. Person #1 runs counterclockwise around the track with a con- stant angular acceleration of α1 = 0.0010 rad/s2. At the same time, Person #2 runs clockwise around the track with a constant angular acceleration of α2 = 0.0025 rad/s2. Determine the speed of each person when they meet for the first time after they start running. I know from the class...
Two bicyclists start racing along a straight road from the same place at the same time...
Two bicyclists start racing along a straight road from the same place at the same time in the same direction. If one travels 40 mi/hr and the other 35 mi/hr, find the distance between them t hours after they start.
Two cars start from rest at a red stop light. When the light turns green, both...
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 4.7 m/s2 for 3.8 seconds. It then continues at a constant speed for 8.5 seconds, before applying the brakes such that the car’s speed decreases uniformly coming to rest 206.78 meters from where it started. The yellow car accelerates uniformly for the entire distance, finally catching the blue car just as the...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT