You are driving to the grocery store at 16 m/s.
You are driving to the grocery store at 16 m/s. You are 160 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.50 s and that your car brakes with constant acceleration.
Part A
What magnitude braking acceleration will bring you to a stop exactly at the intersection? E
Homework Answers
You are driving to the grocery store at 20 m/s . You are 1.10×102m from an...
You are driving to the grocery store at 20 m/s . You are 1.10×102m from an intersection when the traffic light turns red. Assume that your reaction time is 0.79 s and that your car brakes with constant acceleration. A) How far are you from the intersection when you begin to apply the brakes? B) What acceleration will bring you to rest right at the intersection? C) How long does it take you to stop after the light turns red?
You are driving to the grocery store at 20 m/s. You are 110 m from an...
You are driving to the grocery store at 20 m/s. You are 110 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.70 s and that your car brakes with constant acceleration. a. How far are you from the intersection when you begin to apply the brakes? b. What acceleration will bring you to rest right at the intersection? c. How long does it take you to stop?
You are driving to the grocery store at 25 m/s . You are 110 m from...
You are driving to the grocery store at 25 m/s . You are 110 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.70 s and that your car brakes with constant acceleration. -How far are you from the intersection when you begin to apply the brakes? -What acceleration will bring you to rest right at the intersection? -How long does it take you to stop? A rock is tossed straight up with...
You are driving towards a traffic signal when it turns yellow. You are travelling at 15.5...
You are driving towards a traffic signal when it turns yellow. You are travelling at 15.5 m/s and as you break, you decelerate at a constant rate of 3.5 m/s2. Your reaction time before breaking is 0.75 s. If the distance to the intersection is 40 m, willl your car stop before the intersection? If the duration of the yellow light was 3.2 seconds, would you have been able to pass the traffic signal before the light turned red?
You are driving your car, and the traffic light ahead turns red. You apply the brakes...
You are driving your car, and the traffic light ahead turns red. You apply the brakes for 2.45 s, and the velocity of the car decreases to + 4.71 m/s. The car’s deceleration has a magnitude of 3.54 m/s2 during this time. What is the car’s displacement?
You are driving your car, and the traffic light ahead turns red. You apply the brakes...
You are driving your car, and the traffic light ahead turns red. You apply the brakes for 2.75 s, and the velocity of the car decreases to + 5.03 m/s. The car’s deceleration has a magnitude of 3.11 m/s2 during this time. What is the car’s displacement
A car driving with a speed of 16 m/s begins braking, coming to rest 45 m...
A car driving with a speed of 16 m/s begins braking, coming to rest 45 m after the brakes are first applied. The car's tires have a radius of 38 cm. What is the magnitude of the angular acceleration of the car's tires as it stops?
A car is travelling north at a speed 12.9 m/s toward an intersection when the traffic...
A car is travelling north at a speed 12.9 m/s toward an intersection when the traffic light turns red. It takes the car 4.2 seconds to stop. (a) What is magnitude of the car’s average acceleration? (b) What is the direction of the car’s average acceleration? * east * south * north * west
A person driving her car at 49.0 km/hr approaches an intersection just as the traffic light...
A person driving her car at 49.0 km/hr approaches an intersection just as the traffic light turns yellow. She knows that the yellow light lasts only 1.80 s before turning to red, and she is a distance D = 35.0 m away from the near side of the intersection. If she decides to stop, how far from the intersection will she come to a stop? The intersection is W =11.0 m wide. Her car's maximum deceleration is -5.70 m/s2. Ignore...
A car is traveling north along a straight road with a constant speed of 11.2 m/s....
A car is traveling north along a straight road with a constant speed of 11.2 m/s. In order to pass through an intersection before the traffic light turns red, the driver accelerates forward with a constant magnitude of 2.25 m/s2 for 3.70 s. A)What is v0? B) What is a? C)What is t? D) What is the velocity of the car at the end of the acceleration? E)What is the position of the car at the end of the acceleration?...
You are driving to the grocery store at 20 m/s. You are 110 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.70 s and that your car brakes with constant acceleration. a. How far are you from the intersection when you begin to apply the brakes? b. What acceleration will bring you to rest right at the intersection? c. How long does it take you to stop?
You are driving towards a traffic signal when it turns yellow. You are travelling at 15.5 m/s and as you break, you decelerate at a constant rate of 3.5 m/s2. Your reaction time before breaking is 0.75 s. If the distance to the intersection is 40 m, willl your car stop before the intersection? If the duration of the yellow light was 3.2 seconds, would you have been able to pass the traffic signal before the light turned red?
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