Determine how long does it take to come to a stop

Reference no: EM13524285

(a) A light-rail commuter train accelerates at a rate of 1.35 m/s2. How long does it take it to reach its top speed of 80.0 km/h starting from rest?

(b) The same train ordinarily decelerates at a rate of 1.95 m/s2. How long does it take to come to a stop from its top speed?

(c) In emergencies the train can decelerate more rapidly, coming to rest from 80.0 km/h in 8.30 s. What is its emergency deceleration in m/s2?

m/s2

Reference no: EM13524285

Questions Cloud

Determine how long does the collision last : An unwary football player collides with a padded goalpost while running at a velocity of 8.50 m/s and comes to a full stop after compressing the padding and his body 0.150 m. How long does the collision last

Could mr smiths culture influence his pain assessment : Could Mr Smiths culture influence his pain assessment? Why? What strategies could you employ to ensure that you are adequately addressing Mr Smith's pain?

Determine how far will it travel in each case : Freight trains can produce only relatively small acceleration and decelerations. How far will it travel in each case

Determine what is her final velocity : At the end of a race a runner decelerates from a velocity of 10.00 m/s at a rate of 0.400 m/s2. What is her final velocity

Determine how long does it take to come to a stop : The same train ordinarily decelerates at a rate of 1.95 m/s2. How long does it take to come to a stop from its top speed

Find the time interval between the two sounds : An 68.0-m-long brass rod is struck at one end. A person at the other end hears two sounds as a result of two longitudinal waves, What is the time interval between the two sounds

Find the maximum positive coordinate reached by the particle : The position of a particle moving along an x axis is given by x = 17t2 - 6.0t3, What is the maximum positive coordinate reached by the particle

Find the maximum positive velocity reached by the particle : The position of a particle moving along an x axis is given by x = 17t2 - 6.0t3, where x is in meters and t is in seconds. What is the maximum positive coordinate reached by the particle

Estimate the average speed for the round trip : A car travels up a hill at a constant speed of 65 km/h and returns down the hill at a constant speed of 20 km/h. Calculate the average speed for the round trip

User Account

All Pages