A car starts from rest at point O and accelerates uniformly on a straight road for 10 seconds until it reaches point A with a speed of 20 m/s (Stage OA). At point A, the car continues with a constant speed of 20 m/s for 3 minutes (Stage AB). When reaching point B, the brakes are applied and the car decelerates at a constant rate until it stops at point C. The distance travelled by the car from B to C is 20 m (Stage BC). What is the time elapsed in stage 3? VA = 20 m/s Va = 20 m/s а) 1 s b) 1.5 s c) 2 s d) 8 s A B OA = ? AB = ? ВС - 20 m TOA = 10 s LAB= 180 s Bc=? a = ? az =? e) 9 s

A car starts from rest at point O and accelerates uniformly on a straight road for 10 seconds until it reaches point A with a speed of 20 m/s (Stage OA). At point A, the car continues with a constant speed of 20 m/s for 3 minutes (Stage AB). When reaching point B, the brakes are applied and the car decelerates at a constant rate until it stops at point C. The distance travelled by the car from B to C is 20 m (Stage BC). What is the time elapsed in stage 3? VA = 20 m/s Va = 20 m/s а) 1 s b) 1.5 s c) 2 s d) 8 s A B OA = ? AB = ? ВС - 20 m TOA = 10 s LAB= 180 s Bc=? a = ? az =? e) 9 s

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A car starts from rest at point O and accelerates uniformly on a straight road for 10 seconds until it reaches point A with a speed of 20 m/s (Stage OA). At point A, the car continues with a constant speed of 20 m/s for 3 minutes (Stage AB). When reaching point B, the brakes are applied and the car decelerates at a constant rate until it stops at point C. The distance travelled by the car from B to C is 20 m (Stage BC). What is the distance covered in stage 2? Ve =0 V= 20 m/s V- 20 m/s a) 3600 m b) 3950 m c) 4200 m d) 4450 m e) 4700 m A B BC = 20 m OA = ? OA= 10 s a = ? AB = ? AB 180 s a =? a
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A car starts from rest at point O and accelerates uniformly on a straight road for 10 seconds until it reaches point A with a speed of 20 m/s (Stage OA). At point A, the car continues with a constant speed of 20 m/s for 3 minutes (Stage AB). When reaching point B, the brakes are applied and the car decelerates at a constant rate until it stops at point C. The distance travelled by the car from B to C is 20 m (Stage BC). What is the distance covered in stage 2? Vo =0 VA = 20 m/s Va - 20 m/s a) 3600 m b) 3950 m c) 4200 m d) 4450 m e) 4700 m A B OA = ? 'OA 10 s a, = ? AB = ? BC = 20 m LAB= 180 s a, = ? a
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