You are at rest at a stop sign. There is another stop sign that is 100 meters away. Your maximum acceleration is 8 m/s/s and you maximum braking acceleration is 5 m/s/s. a. How much time do you spend accelerating? b. How much time do you spend braking? c. What is the total travel time? d. Over how much distance do you accelerate? e. Over how much distance do you brake? f. What is the total travel distance
You are at rest at a stop sign. There is another stop sign that is 100...
How much time in seconds does it take to travel this straight line distance? Another similar elevator has been designed to travel a distance of 255 meters It has an acceleration of 0 879 meter per second squared It has a maximum speed of 360 meters per minute. This means that once reaches its maximum speed, i continues the rest of the journey at this maximum speed Hint - you have to do this in two separate parts as you...
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 5.6 m/s2 for 3 seconds. It then continues at a constant speed for 7.8 seconds, before applying the brakes such that the car’s speed decreases uniformly coming to rest 178.16 meters from where it started. The yellow car accelerates uniformly for the entire distance, finally catching the blue car just as the...
A 2 kg mass traveling at 5m/s undergoes a constant acceleration and comes to a stop in 10 seconds. a) what acceleration does it experience? b) how far does it go during the time it is coming to a stop? c) What net force does the mass experience as it comes to a stop? A 75 kg mass accelerates from rest at a rate of 2m/s2 over a distance of 50m a) How fast is it going after covering a...
Spotting a police car, police car you brake a Porsche frem 75 kend to to 45 km/h over displacement of 88 m. @ What is the acceleration, assumed to be constant? 6 What is the elapsed time? @ If you continue to slow down with the acceleration calculated in (a) above, how much time would elapse in bringing the car to rest from 75 km/h? & In (6) above, what distance would be covered? @ Suppose that, on a second...
Answers: (a) t=26s (b) x=225m Can you show steps please? An electric vehicle starts from rest and accelerates at a rate of 1 m/s^2 in a straight line over a distance of 150 m. The vehicle then slows at a constant rate of 2 m/s' until it stops. (a) How much time elapses from the start to stop? (b) How far does the vehicle travel from the start to stop? (c) Draw the following graphs: position versus, velocity versus time,...
How do you do this A car starting from rest moves in a straight line with a constant acceleration of 1.95 m/s for 14.0 s, then slows down to a stop with a constant eceleration of 2.75 m/s How far does it travel? meters
QUESTION 3 How much time in seconds does it take to travel this from the ground floor to the top floor? Remember that the cab must start from rest when you get on and stop moving for you to get off. There will be three different types of motion. Another similar elevator has been designed to travel a distance of 363 meters from the bottom to the top floor It has an acceleration of 1.44 meter per second squared when...
A car is 162 m from a stop sign and traveling toward the sign at 27 m/s. At this time, the driver suddenly realizes that she must stop the car. If it takes 0.200 s for the driver to apply the brakes, what must be the magnitude of the constant acceleration of the car after the brakes are applied so that the car will come to rest at the stop sign?
A car is 137 m from a stop sign and traveling toward the sign at 25 m/s. At this time, the driver suddenly realizes that she must stop the car. If it takes 0.200 s for the driver to apply the brakes, what must be the magnitude of the constant acceleration of the car after the brakes are applied so that the car will come to rest at the stop sign?
3. During a very quick stop, a car decelerates at 6.2 m/s2. Assume the forward motion of the car corresponds to a positive direction for the rotation of the tires (and that they do not slip on the pavement). a. What is the angular acceleration of its tires in rad/s2, assuming they have a radius of 0.28 m and do not slip on the pavement? b. How many revolutions do the tires make before coming to rest, given their initial...