1. A car with an initial velocity of 25m/s [E] experiences an average acceleration of 2.5m/s2 [W] for 20 seconds. At the end of this time interval, ... a) the velocity of the car will be 25m/s [W] b) the car will be at rest. c) the speed of the car will be 75m/s. d) the car will be moving 25m/s [E].
Q: these questions are related to each other, you need one to answer the other
A: The correct option is - Option (c)
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- figure 1 shows a velocity-versus-time graph for the bicycle trips of two friends with respect to the parking lot where they started. Xena's position at time zero is 0 and Gabriele's position is 60 m. Determine the displacement of Xena in 40 s. Determine the displacement of Gabriele in 30 s. What time interval is needed for Xena to catch Gabriele?A toy train rolling on a straight stretch of tracks, initially going 0.31 m/s slows uniformly to 0.14 m/s in 17 s. It then speeds up with a constant acceleration of magnitude 0.068 m/s2 over a distance of 4.2 m. i) How far does it go in the initial 14 s of slowing down?A certain car is capable of accelerating at a rate of 0.61 m/s2. How long does it take for this car to go from a speed of 40 mi/h to a speed of 50 mi/h? (No Response) S
- al 4.40 m/s², what happens to the deer? 3. A ball is dropped from the top of a 100.0 m high building and a second ball is propelled up from the bottom of that same building at 30.0 m/s. Where do the balls pass each other? At what time do they pass each other? NSWERS: 1 al 0 m/s h) 981 m² (down]) 1.00 DE 203) It is a velocity-time graph for an object under constant acceleration. Determine the displacement of the object over the interval 0 s to 3.0 s, 3.0 s to 5.0 s, 5.0 s to 7.0 s. Determine the total displacement. Determine the accelerations of object over the interval 0 s to 3.0 s, 3.0 s to 5.0 s, 5.0 s to 7.0 s. What is the average velocity during the interval 0 s to 4.0 s? Draw the graphs of position-time if its initial position be zero. Draw the graphs of Acceleration-time. v (m/s [E]) 1.2 1.0 0.8 0.6 0.4 0.2 0+ 0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 t(s)what is the answer for the first qustion?
- A record of travel along a straight path is as follows: 1. Start from rest with constant acceleration of 2.10 m/s² for 18.0 s. 2. Maintain a constant velocity for the next 1.50 min. 3. Apply a constant negative acceleration of -9.02 m/s² for 4.19 s. (a) What was the total displacement for the trip? m (b) What were the average speeds for legs 1, 2, and 3 of the trip, as well as for the complete trip? leg 1 m/s leg 2 m/s leg 3 m/s complete trip m/sA record of travel along a straight path is as follows: 1. Start from rest with constant acceleration of 2.05 m/s² for 16.0 s. 2. Maintain a constant velocity for the next 1.80 min. 3. Apply a constant negative acceleration of -9.25 m/s² for 3.55 s. (a) What was the total displacement for the trip? m (b) What were the average speeds for legs 1, 2, and 3 of the trip, as well as for the complete trip? leg 1 m/s leg 2 leg 3 complete trip m/s m/s m/s