Answered: 1. An airplane flies 75 km [E] and then…

1. An airplane flies 75 km [E] and then 15 km [S] in a total time of 0.50 h. What is the average velocity of the airplane? 180 km/h b. 130 km/h [E] c. 120 km/h[SE] d. 85 km/h e. none of above а.

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

3. A horse canters away from its trainer in s straight line moving 220 m away in 18s. It then turns abruptly and gallops halfway back in 4.8 s. Calculate (a). its average speed and (b). its average velocity for the entire trip, using "away from the trainer" as the positive direction
1. In general, when is the velocity... (briefly describe) A. > 0 Instantaneous Velocity: Average Velocity: B. = 0 Instantaneous Velocity: Average Velocity: C. < 0 Instantaneous Velocity: Average Velocity:
3. A jet cruising at a speed of 1000 km/hr ejects hot air in the opposite direction. If the speed of hot air with respect to Jet is 800 km/hr, then find its speed with respect to ground.
a car travels from 32 km [W] of a railroad to 27 km [E] in 1.8 h. What is the velocity of the car? a. 0.77 m/s [E] b. 9.1 m/s [E] c/ 33 m/s [E] d 2.8 m/s [E]
Please help, do not reject! Thanks!
2. A bullet is fired straight up with a muzzle velocity of 460 m/s. How long will it take to reach its highest point and how high will that be? (The air resistance may be neglected.)
In a motorway crash, a car travelling (illegally) at 50.0 m/s stops in 4.0 m. CalculateA. The acceleration of the car. B. The time it takes to stop.
15. Hello, Can you please help me with the next problem? 15. Two friends talk on the phone to meet,both come out at the same time in their respective bicycles; one of them with a speed of 25 km/h and the other with a speed of 30 Km/h. If the distance that initially separates them is 120 km:1. How far are they from each other's house?2. How long after dating do they meet? Thank you in advance!
3. An object is thrown vertically downward at 5 m s-1 from a height of 30 m. Calculate (i) the speed of the object just before it hits the ground. [Answer: v=24.77 m s¯' ] (ii) the time taken by the object to reach the ground. [Answer: t= 2.02 s ]
7. Determine the acceleration of a car starting from rest, moving 45 m [S] in 1.0 minutes. a. 0.025 m/s? [S] b. 1.5 m/s? [S] c. 9.0 x 10' m/s? [S] d. 1.5 m/s [S] e. 9.0 x 10' m/s [S]
1. A car starting from rest picks up at a uniform rate and passes three electric posts in succession. The posts are spaced 340 m apart along a straight road. The car takes 10 seconds from 1" post to 2 post and 6 seconds from 2d post to 3" post. Compute for the following: a. Acceleration of the car in m/s b. Velocity of the car as it reaches the first post. e. Distance from the starting point to the first point.
A swimmer swims 10 complete laps in a swimming pool. It takes 15 seconds to complete the swim.Pool is 30m long. Choose all the correct answers. 1. Swimmer has av. velocity of 0m/s 2. swimmer has av. speed of 40m/s. 3. Swimmer covers a distance of 600m to complete 10 laps 4. Swimmer has displacement of zero.