On a 200 km bike cycle ride, you ride the first 90 km at an average speed of 20 m/s. What mustyour average speed over the next 40 km be to have your average speed for the total 200 km be?(b) Given this average speed for the first 90 km, can you possibly attain an average speed of80 m/s for the total 200 km ride? Explain.

Could I have help with this average speed and velocity problem. I already know the answers"average velocity = 2.7 m/s due east, ­average speed = 8.0 m/s"  but I need a detailed explanantion on how and why because I am not understanding and getting the same answers

#9) Let's say an object moves along the X - axis with a time dependent velocity given as, vx(t) = (a + 2ßt³ - 3yt5+48t7- 6et), where a, ß, y, 8, and & are just constants. (A) Determine an expression for the acceleration of the object in the x-direction. No numbers from part (C) allowed in this part. (B) Determine an expression for the position, x of the object. No numbers from part (C) allowed in this part. (C) Now, given that a = 3.00 m/s, B = 1.50 m/s4, y = 1.20 m/s6, 8 = 7.40 m/s8, and ε = 9.72 m/s². At t = 0.00 s, x= 4.00 m/s. What is the x-position of the object when t = 3.20 s? Report answer to 3 sig figs and use scientific notation.

The driver of a car traveling on the highway suddenly slams on the brakes because of a slowdown in traffic ahead. a) If the car’s speed decreases at a constant rate from 75 mi/hmi/h to 40 mi/hmi/h in 3.0 ss, what is the magnitude of its acceleration, assuming that it continues to move in a straight line? b) What distance does the car travel during the braking period?

# 5) There is a high-speed police chase on 1-64! The driver of a police car heading East pulls off into an emergency turn around on 1-64 so that he can turn around and join the pursuit, which is moving on the westward side of the interstate. In order to successfully merge with constant acceleration, the police car starts from rest, moves in a straight line, and has a speed of 24.0 m/s when it reaches the end of the merge lane, which has a total length of 80.0 m. Report answers below to 3 sig figs. A) What is the magnitude of the constant acceleration of the police during merging? B) How much time does it take the police car to travel the full length of the merging lane? C) The traffic on 1-64 is moving at a constant speed of 17.0 m/s. What distance does the traffic travel while the police car is moving the length of the merging lane?

One car travels due east at a steady 40 km/h, and a second car travels due north at a steady 40 km/h. Are their velocities equal? Yes, they are both moving in positive directions. No, they are accelerating differently. No, they have different directions. Yes, they have the same speed.

1. (I) What must be your car's average speed in order to travel 235 km in 3.25 h? 2. (I) A bird can fly 25 km/h. How long does it take to fly 15 km? 3. (I) If you are driving 110 km/h along a straight road and you look to the side for 2.0 s, how far do you travel during

72. Go The data in the following table represent the initial and final ve- locities for a boat traveling along the r axis. The elapsed time for each of the four pairs of velocities in the table is 2.0 s. Review the concept of average acceleration in Section 2.3 and then determine the average accel- eration (magnitude and direction) for each of the four pairs. Note that the algebraic sign of your answers will convey the direction. Initial velocity v, Final velocity v +2.0 m/s +5.0 m/s (b) +5.0 m/s +2.0 m/s (c) -6.0 m/s -3.0 m/s (d) +4.0 m/s -4.0 m/s

(10%) Problem 9: In 1967, the New Zealander Burt Munro set the world speed record for an Indian motorcycle, on the Bonneville Salt Flats in Utah, reaching 183.58 mi/h. The one-way course was 5.00 mi long. Acceleration rates are often described by the time it takes to reach 60.0 mi/h from rest. > * Assuming that time was 4.1 s for Burt, if he accelerated at a constant rate until he reached his maximum speed, and then continued at that speed until the end of the course, how long, in seconds, did it take him to complete the course? Grade Summary Deductions 0%