Engineering Mechanics KINEMATICS OF A PARTICLE FORCE AND

Example 1 A car starts from rest and with constant acceleration achieves a velocity

Example 2 A train starts from rest at a station and travels with a

Example 3 An elevator descends from rest with an acceleration of 1. 5 m/s

Example 4 A car is traveling at 15 m/s, when the traffic light 50

Example 5 An elevator has a gross weight of 5 k. N starts to

Slides: 6

Download presentation

Example 1 A car starts from rest and with constant acceleration achieves a velocity of 15 m /s when it travels a distance of 200 m. Determine the acceleration of the car and the time required. Copyright © 2010 Pearson Education South Asia Pte Ltd

Example 2 A train starts from rest at a station and travels with a constant acceleration of 1 m /s 2. Determine the velocity of the train when t = 30 seconds and the distance travelled during this time. Copyright © 2010 Pearson Education South Asia Pte Ltd

Example 3 An elevator descends from rest with an acceleration of 1. 5 m/s 2 until it achieves a velocity of 4. 5 m/s. determine the time required and the distance traveled. Copyright © 2010 Pearson Education South Asia Pte Ltd

Example 4 A car is traveling at 15 m/s, when the traffic light 50 m ahead turns yellow. Determine the required constant deceleration of the car and the time needed to stop the car at the light. Copyright © 2010 Pearson Education South Asia Pte Ltd

Example 5 An elevator has a gross weight of 5 k. N starts to move upward with a constant acceleration and acquires velocity of 2 m/s after travelling a distance of 3 m. Determine the tension in the elevator cable during accelerated motion. Copyright © 2010 Pearson Education South Asia Pte Ltd