A motorcycle is stopped at a traffic light. When the light turns green, the motorcycle accelerates to a speed of 90 km/h over a distance of 50 m. (a) What was the average acceleration (in m/s2) of the motorcycle over this distance? m/s² (b) Assuming the motorcycle maintained a constant acceleration, how far (in m) is it from the traffic light after 3.0 s? m

A motorcycle is stopped at a traffic light. When the light turns green, the motorcycle accelerates to a speed of 90 km/h over a distance of 50 m. (a) What was the average acceleration (in m/s2) of the motorcycle over this distance? m/s² (b) Assuming the motorcycle maintained a constant acceleration, how far (in m) is it from the traffic light after 3.0 s? m

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter2: Kinematics

Section: Chapter Questions

Problem 2PE: Find the following for path B in Figure 2.59: (a) The distance traveled. (b) The magnitude of the...

See similar textbooks

Similar questions

Cheetahs can accelerate to a speed of 20.0 m/s in 2.50 s and can continue to accelerate to reach a top speed of 29.8 m/s. Assume the acceleration is constant until the top speed is reached and is zero thereafter. Let the +?-direction point in the direction the cheetah runs. Express the cheetah's top speed ?top in miles per hour (mi/h). (I already have the answer to this one) vtop=66.7 mi/h Starting from a crouched position, how much time taccel does it take a cheetah to reach its top speed, and what distance ?d does it travel in that time? (I already have the answer to this one) taccel= 3.725 s & d=55.50 m If a cheetah sees a rabbit 123.0 m away, how much time ?total will it take to reach the rabbit, assuming the rabbit does not move and the cheetah starts from rest? ttotal=_____?______ s
Cheetahs can accelerate to a speed of 20.2 m/s in 2.65 s and can continue to accelerate to reach a top speed of 29.0 m/s . Assume the acceleration is constant until the top speed is reached and is zero thereafter. Let the +? direction point in the direction the cheetah runs.Express the cheetah's top speed ?top in miles per hour (mi/h) .Starting from a crouched position, how much time ?accel does it take a cheetah to reach its top speed and what distance ? does it travel in that time?
a) Calculate the height (in m) of a cliff if it takes 2.33 s for a rock to hit the ground when it is thrown straight up from the cliff with an initial velocity of 8.20 m/s. b) How long (in s) would it take to reach the ground if it is thrown straight down with the same speed?
The driver of a car traveling on the highway suddenly slams on the brakes because of a slowdown in traffic ahead. a) If the car’s speed decreases at a constant rate from 75 mi/hmi/h to 40 mi/hmi/h in 3.0 ss, what is the magnitude of its acceleration, assuming that it continues to move in a straight line? b) What distance does the car travel during the braking period?
A particle traveling in a straight line starts from rest it has an acceleration of a = (8 m/s*)³ t²+ (-2m/s³) t, where t is in seconds. What is the particle's velocity and total distance travelled when t= 3 s?
Starting from rest, a bus leaves a gas station with a constant acceleration of 2 m/s˄2 until it reaches a speed of 10 m/s. The bus then continues to move with this speed (10 m/s) for 5 s. Then the bus decelerates at 2.5 m/s˄2 until it stops. What is the total distance traveled by the bus?
You drive a beat-up pickup truck along a straight road for 8.4 km at 70 km/h, at which point the truck runs out of gasoline and stops. Over the next 30 min, you walk another 2.0 km farther along the road to a gasoline station. (a) What is your overall displacement from the beginning of your drive to your arrival at the station?
A motorist enters a freeway at 30 mi/h and accelerates uniformly to 60 mi/h. From the odometer in the car, the motorist knows that she traveled 550 ft while accelerating. Determine (a) the acceleration of the car, (b) the time required to reach 60 mi/h. Do = 30 mi/h
In 1967, New Zealander Burt Munro set the world record for an Indian motorcycle, on the Bonneville Salt Flats in Utah, with a maximum speed of 183.58 mi/h. The one‐way course was 5.00 mi long. Acceleration rates are often described by the time it takes to reach 60.0 mi/h from rest. If this time was 4.00 s, and Burt accelerated at this rate until he reached his maximum speed, a. how long did it take Burt to complete the course? b. Sketch position vs time, velocity vs. time, and acceleration vs. time graphs for the race.
Assume that you are driving a car at 10.0 km/h and then you accelerate to 80.0 km/h with an acceleration of 3.50 m/s². How much time will it take until you reach the velocity 80.0 km/h? (Provide you answer in s with two decimal places.) Your Answer:
A speeder traveling at 40 m/sec along a straight road sees a police car in the distance. He applies the brakes and the car stops in 160m. a) How long does it take for the car to stop? b) What was the car’s acceleration?
Cheetahs can accelerate to a speed of 20.0m/s in 2.50 s and can continue to accelerate to reach a top speed of 27.8 m/s. Assume the acceleration is constant until the top speed is reached and is zero thereafter. Let the +x-direction point in the direction the cheetah runs. Express the cheetah's top speed vtop in miles per hour (mi/h). Vtop= ______________ mi/h Starting from a crouched position, how much time taccel does it take a cheetah to reach its top speed, what distance d does it travel in that time? taccel = ____________ s d=_____________ m If a cheetah sees a rabbit 129.0 m away, how much time ttotal will it take to reach the rabbit, assuming the rabbit does not move and the cheetah starts from rest? ttotal = _________ s