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 1? Vo =0 VA= 20 m/s Vy = 20 m/s a) 60 m b) 80 m c) 100 m d) 120 m e) 140 m OA = ? OA= 10 s AB ? BC = 20 m 'AB= 180 s a = ? O a clidea IDG

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 1? Vo =0 VA= 20 m/s Vy = 20 m/s a) 60 m b) 80 m c) 100 m d) 120 m e) 140 m OA = ? OA= 10 s AB ? BC = 20 m 'AB= 180 s a = ? O a clidea IDG

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)...

See similar textbooks

Similar questions

Problem 5: a) What is the final velocity of a train that starts with a velocity of 4 m/s then accelerates at 0.05 m/s² for 8 minutes? b) Once at this speed, how long will it take the train to decelerate to a stop if it can slow at a rate of 0.55 m/s² when braking? c) What distance does the train travel while it is braking to a stop?
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
(A A person walks first at a constant speed of 4.80 m/s along a straight line from point to point and then back along the line from B to A at a constant speed of 3.05 m/s What is her average velocity over the entire trip? B m/s
A motorcycle begins at rest at t0 = 0 seconds. The motorcycle starts moving, and eventually covers a distance d = 712 m, in a time tf = 163 s. In a coordinate system with north being the positive x-direction, the motorcycle's motion is in the northern direction (see figure). If the motorcycle's final velocity at tf was 12 m/s, what was the motorcycle's average acceleration in the northern direction, aavg,N, during this period in m/s2?
You travel from point A to point B in a car moving at a constant speed of 70 km/h. Then you travel the same distance from point B to another point C, moving at a constant speed of 90 km/h. Is your average speed for the entire trip from A to C 80 km/h? Explain why or why not.
You and your family are going on a road trip to visit your recently married cousin in B.C. The total round trip distance is 2100 km. On the way to B.C., you encounter no setbacks and you are able to drive on average at a constant speed. On the way home from B.C., you encounter a snowstorm and your mom has to slow down to avoid getting into an accident. Thus, your average speed decreases by 10 km/h. If the total driving time was 42 hours, what was your average speed on the way to B.C.? Recall distance = speed x time.
A train is initially travelling along a straight track at a steady speed of 30 m s¯¹. At time t = 0.00 s a signal ahead turns red. It takes the driver 0.60 s to react and apply the brakes. Once the brakes are hit, the train decelerates with a constant acceleration of magnitude 9.0 m s2 until it comes to rest. What is the total distance travelled by the train in the period between the signal turning to red and the train coming to rest? Give your answer by entering a number (correct to an appropriate number of significant figures) in the empty box below. Total distance travelled = m.
A blue car is moving at a constant speed of 70 m/s when it passes signage with a police officer beside it. Due to the car's over speeding, the police officer chases it with a constant acceleration of 4 m/s2, one second after the car passes the signage. How long does it the police officer to overtake the truck?
The graph shows velocity vs. time. Which option best describes the average acceleration from 40 to 70 s?
A train starts from rest and accelerates uniformly, until it has traveled 5.6 km and acquired a velocity of 42 ms. The train then moves at a constant velocity of 42 m/s for 420 s. The train then slows down uniformly at 0.065 m/s2, until it is brought to a halt. The acceleration during the first 5.6 km of travel is closest to: O 0.20 m/s² O 0.14 m/s² O 0.19 m/s² 0.17 m/s² O 0.16 m/s²
A subway car leaves station A; it gains speed at the rate of 4 ft/s² for 6 s and then at the rate of 6 ft/s² until it has reached the speed of 48 ft/s. The car maintains the same speed until it approaches station B; brakes are then applied, giving the car a constant deceleration and bringing it to a stop in 6 s. The total running time from A to B is 40 s. Determine the distance between stations A and B.
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? = 0 VA = 20 m/s VB = 20 m/s a) 1 s b) 1.5 s c) 2 s d) 8 s е) 9s A В C OA = ? AB = ? BC = 20 m TOA= 10 s a, =? IAB = 180 s IBC =? az = ?