A person is initially driving a car east down a straight road. the magnitude of the...
A person is initially driving a car east down a straight road. the magnitude of the instantaneous acceleration is increasing with time and the direction of the acceleration is always to the east. the Speed of the car is:
Homework Answers
If velocity and acceleration is in same direction then velocity of car increase with time. So speed of the car increase with time.
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A person is initially driving a car east down a straight road.
the magnitude of the...
A person is initially driving a car east down a straight road. The magnitude of the...
A person is initially driving a car east down a straight road. The magnitude of the instantaneous acceleration remains constant with time, and the direction of the acceleration is always to the west. The speed of the car is O decreasing but then increasing O increasing O increasing but then decreasing O constant. O decreasing. While standing at the edge of the roof of a building, you throw a stone upward with an initial speed 7.39 m/s. The stone subsequently...
22. Two cars are driving down a straight country road when the driver of the first...
22. Two cars are driving down a straight country road when the driver of the first car (traveling at speed vi v sees a deer crossing the road in front of her. She quickly applies her brakes, causing her car to slow down with a (negative) acceleration a--2a. The second car is a distance D behind her and is traveling at an initial speed v2 v. Its driver immediately applies his brakes as well-assume at the same time as the...
Suppose a car is driving down the road at a speed of 15m/s . The car...
Suppose a car is driving down the road at a speed of 15m/s . The car hits the brakes, inducing an acceleration of -2.5m/s. How long would it take in seconds for the car to fully stop?
Suppose a car is driving down the road at a speed of 15m/s^2. The car hits...
Suppose a car is driving down the road at a speed of 15m/s^2. The car hits the brakes, inducing an acceleration of -2.5m/s^2. How long would it take, in seconds for the car go fully stop.
A car is initially at rest on a straight road. The graph shows the acceleration of...
A car is initially at rest on a straight road. The graph shows
the acceleration of the car along that road as a function of
time.
What is the speed of the car at t=6 s?
What distance does the car cover in the first 8 seconds?
What is the speed of the car at t=13 s?
Determine the distance covered by the car between t=11 s and t=14
s?
4. 2 -1 -3 0 1 2 34 5 6...
Jason ("J"), parked by the side of an east-west road, is watching a car driven by...
Jason ("J"), parked by the side of an east-west road, is watching a car driven by Priscilla ("P"), which is moving in a westerly direction. Selene ("S"), driving east at a speed of 15 m/s relative to Jason, watches the same car. Take the easterly direction as positive. a) If Jason measures a speed of 20 m/s for car P, what velocity will Selene measure? b) If Jason sees Priscilla brake to a halt in 10s, what acceleration (assumed constant)...
A car is initially at rest on a straight road. The histogram below shows the car's...
A car is initially at rest on a straight road. The histogram
below shows the car's acceleration along that road as a function of
time.
Calculate the speed of the car at t = 4 s.
Calculate the distance traveled during the first 5 s.
Calculate the distance traveled from t=10 s to t=13 s.
Calculate the car's average speed from t = 6 s to t=9 s.
A car is initially at rest on a straight road. The histogram below shows the car's...
A car is initially at rest on a straight road. The histogram below shows the car's acceleration along that road as a function of time. Calculate the speed of the car at t = 4 s. -12m/s Calculate the distance traveled during the first 6 s. Calculate the distance traveled from t = 10 s to t = 14 s. Calculate the car's average speed from t = 5 s to t = 9 s.
A car is initially at rest on a straight road. The graph shows the acceleration of...
A car is initially at rest on a straight road. The graph shows
the acceleration of the car along that road as a function of
time.
What is the speed of the car at t=7 s?
4.0 m/s
You are correct.
b) What distance does the car cover in the first 8 seconds?
c) What is the speed of the car at t=14 s?
d) Determine the distance covered by the car between t=11 s and
t=13 s?
4. 2...
Two cars are driving at the same constant speed on a straight road, with car 1...
Two cars are driving at the same constant speed on a straight road, with car 1 in front of car 2. Car 1 suddenly starts to brake with constant acceleration and stops in 10 m. At the instant car 1 comes to a stop, car 2 begins to brake with the same acceleration. It comes to a halt just as it reaches the back of car 1. What was the separation between the cars before they starting braking?
A person is initially driving a car east down a straight road. The magnitude of the instantaneous acceleration remains constant with time, and the direction of the acceleration is always to the west. The speed of the car is O decreasing but then increasing O increasing O increasing but then decreasing O constant. O decreasing. While standing at the edge of the roof of a building, you throw a stone upward with an initial speed 7.39 m/s. The stone subsequently...
22. Two cars are driving down a straight country road when the driver of the first car (traveling at speed vi v sees a deer crossing the road in front of her. She quickly applies her brakes, causing her car to slow down with a (negative) acceleration a--2a. The second car is a distance D behind her and is traveling at an initial speed v2 v. Its driver immediately applies his brakes as well-assume at the same time as the...
A car is initially at rest on a straight road. The graph shows
the acceleration of the car along that road as a function of
time.
What is the speed of the car at t=6 s?
What distance does the car cover in the first 8 seconds?
What is the speed of the car at t=13 s?
Determine the distance covered by the car between t=11 s and t=14
s?
4. 2 -1 -3 0 1 2 34 5 6...
A car is initially at rest on a straight road. The histogram below shows the car's acceleration along that road as a function of time. Calculate the speed of the car at t = 4 s. -12m/s Calculate the distance traveled during the first 6 s. Calculate the distance traveled from t = 10 s to t = 14 s. Calculate the car's average speed from t = 5 s to t = 9 s.
Two cars are driving at the same constant speed on a straight road, with car 1 in front of car 2. Car 1 suddenly starts to brake with constant acceleration and stops in 10 m. At the instant car 1 comes to a stop, car 2 begins to brake with the same acceleration. It comes to a halt just as it reaches the back of car 1. What was the separation between the cars before they starting braking?
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