Answered: Consider a vehicle which is already in… | bartleby

Related questions

Question

Consider a vehicle which is already in motion with a velocity of 27 m/s. The vehicle then needs to stop suddenly because of a crossing pedestrian so the driver presses on the brakes initiating a rapid deceleration of -8.4 m/s2. How long does it take for the vehicle to stop and how far will the vehicle travel while before it finally comes to a stop.

Expert Solution

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

A plane accelerates from rest at a constant rate of 5.00 m/s2 along a runway that is 1800 m long. Assume that the plane reaches the required takeoff velocity at the end of the runway. What is the time tTO needed to take off?
A skateboarder starts from rest atop a slope that is 20.0 m long and accelerates uniformly 2.60 m/s per second down the slope. (a) What is the position of the skateboarder 3.00 s later? (b) What is the speed at that point? (c) How much time overall is needed to go down the slope?
The brakes are applied to a moving van, causing it to uniformly slow down. While slowing, it moves a distance of 40.0 m in 7.30 s to a final velocity of 1.75 m/s, at which point the brakes are released. (a) What was its initial speed (in m/s), just before the brakes were applied? (b) What was its acceleration (in m/s2) while the brakes were applied? (Assume the initial direction of motion is the positive direction. Indicate the direction with the sign of your answer.)
A soft tennis ball is dropped onto a hard floor from a height of 1.70 m and rebounds to a height of 1.26 m. (Assume that the positive direction is upward.) (a) Calculate its velocity (in m/s) just before it strikes the floor. m/s (b) Calculate its velocity (in m/s) just after it leaves the floor on its way back up. m/s (c) Calculate its acceleration (in m/s2) during contact with the floor if that contact lasts 3.50 ms. m/s2 (d) How much (in m) did the ball compress during its collision with the floor, assuming the floor is absolutely rigid?
The brakes are applied to a moving van, causing it to uniformly slow down. While slowing, it moves a distance of 40.0 m in 7.30 s to a final velocity of 1.20 m/s, at which point the brakes are released. (a) What was its initial speed (in m/s), just before the brakes were applied? m/s (b) What was its acceleration (in m/s2) while the brakes were applied? (Assume the initial direction of motion is the positive direction. Indicate the direction with the sign of your answer.)
The crossing guard holds up her stop sign, and the driver is paying attention well. The car moves at a constant velocity of 11 m/s for 2.3 seconds while the driver reacts, then slows down at a constant rate of -4.5 m/s?. What is the stopping distance for the car in this situation?
While entering a freeway, a truck accelerates from rest at a rate of 2.1 m/s2 for 11 s. Part (a) How far does the trucktravel in those 11 s, in meters? Part (b) What is the truck's final velocity, in meters per second?
A plane accelerates from rest at a constant rate of 5.00 m/s2 along a runway that is 1800 m long. Assume that the plane reaches the required takeoff velocity at the end of the runway. What is the distance dlast traveled by the plane in the last second before taking off?
A car, initially at rest, accelerates at a constant rate, 3.36 m/s2 for 32.6 seconds in a straight line. At this time, the car decelerates at a constant rate of -2.00 m/s2, eventually coming to rest. How much distance (in meters) did the car travel during the deceleration portion of the trip?
A police car, sitting at the side of the road is passed by a car driving a constant 60 m/s. If the police car can accelerate 2.5 m/s2, how long will it take for the police car to reach the speeding car?
Freight trains can produce only relatively small accelerations and decelerations. a) What is the final velocity of a freight train that accelerates at a rate of 0.0418 m/s² for 6 min, starting with an initial velocity of 3.22 m/s?
You drive a beat-up pickup truck down a straight road for 5.2 mi at 43 mi/h, at which point yourun out of fuel. You walk 1.2 mi farther, to the nearest gas station, in 27 min (= 0.450 h). What isyour average velocity from the time you started your truck to the time that you arrived at thestation?

SEE MORE QUESTIONS