A car is stopped for a traffic signal. When the light turns green, the car accelerates, increasing its speed from 0 to 4.60 m/s in 0.810 s.
What are the magnitudes of the linear impulse and the average total force experienced by a 80.0 kg passenger in the car during the time the car accelerates?
linear impulse
kg·m/s
average force
N
A car is stopped for a traffic signal. When the light turns green, the car accelerates,...
A motorcycle is stopped at a traffic light. When the light turns green, the motorcycle accelerates to a speed of 71 km/h over a distance of 50 m. a) What was the average acceleration of the motorcycle over this distance? (b) Assuming the motorcycle maintained a constant acceleration, how far is it from the traffic light after 3.1 s?
A car, on a straight road, is stopped at a traffic light. When the light turns to green the car accelerates with a constant acceleration. It reaches a speed of 20.6 m/s (74.2 km/h) in a distance of 107 m. Calculate the acceleration of the car.
At a junction, when the traffic light turns green, a car (A) at rest begins to roll with an acceleration of 2.2 m / s2. Always when the traffic light turns green (at t = 0), a second car (B) traveling at a speed of 9.5 m / s exceeds the first car. a. How far from the junction will the car catch up with car B? b. What is the modulus of its speed?
A truck traveling at 50 km/hr approaches a car stopped at a red light. When the truck is 100 m from the car, the light turns green and the car immediately begins to accelerate at 2 m/s2 to a final speed of 100 km/hr. A) • How long does it take for the car to reach its maximum speed? B)During this time, how far does the car travel? C)What is the distance between the truck and the car 20 seconds...
At the instant the traffic light turns green, a car that has been waiting at an intersection starts ahead with a constant acceleration of 3.2 m/s^2. At the same instant a truck, traveling with a constant speed of 20 m/s overtakes and passes the car. (a) How far beyond its starting point does the car overtake the truck? (b) How fast is the car traveling when it overtakes the truck?
At the instant the traffic light turns green, an automobile starts with a constant acceleration a of 2.2 m/s2. At the same instant a truck, traveling with a constant speed of 9.5 m/s, overtakes and passes the automobile. (a) How far beyond the traffic signal will the automobile overtake the truck? (b) How fast will the automobile be traveling at that instant?
A car is initially stopped, vco = 0, at a traffic light whose position we will use as our origin, x = 0. The light turns green at time t = 0 and the car starts moving with constant acceleration ac = 2 m/s2 . At that same instant, the front of a truck traveling at constant speed vt = 15 m/s passes the front of the car. After a time tD and distance x = D, the accelerating car...
A car is initially stopped, Vo = 0, at a traffic light whose position we will use as our origin, x = 0. The light turns green at time 0 and the car starts moving with constant acceleration a.-2 m/s. At that same instant, the front of a truck traveling at constant speed v,-15 m/s passes the front of the car. After a time to and distance x D, the accelerating car catches up to the truck. (SIMPLIFY: You may...
A car is waiting at an intersection. The traffic light turns green, and with some delay the driver steps on the accelerator pedal. The acceleration of the car as a function of time is shown in the figure. What is the final velocity of the car once it is done accelerating? 8.0 7.5 7.0 6.5 6.0 5. 5 5.0 4.5 4.0 r 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 1 2 3 4 5 6 7 8 9 10...
A motorist is traveling at 54 km/h when she observes that a traffic light 240 m ahead of her turns red. The traffic light is timed to stay red for 24 s. If the motorist wishes to pass the light without stopping just as it turns green again, determine (a) the required uniform deceleration of the car, (b) the speed of the car as it passes the light.