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- . (a) Draw an accurate graph of the speed versus time for the train Problem 24. (b) Draw an accurate graph of the distance versus time for the train in Problem 24.A fireworks shell is accelerated from rest to a velocity of 65.0 m/s over a distance of 0.250 m. (a) How long did the acceleration last? (b) Calculate the acceleration.Bacteria move back and forth using their flagella (structures that look like little tails). Speeds of up to 50m/s(50106m/s) have been observed. The total distance traveled by a bacterium is large for its size, whereas its displacement is small. Why is this?
- A bicycle racer sprints at the end of a race to clinch a victory. The racer has an initial velocity of 11.5 m/s and accelerates at the rate of 0.500 m/s2 for 7.00 s. (a) What is his final velocity? (b) The racer continues at this velocity to the finish line. If he was 300 m from the finish line when he started to accelerate, how much time did he save? (c) One other racer was 5.00 m ahead when the winner started to accelerate, but he was unable to accelerate, and traveled at 11.8 m/s until the finish line. How far ahead of him (in meters and in seconds) did the winner finish?The figure shows the speedometer readings as a car drives down a straightroad. (attached) a. What is the acceleration at t = 8.0s. b. What is the change in the cars speed from 5-10 seconds? c. What distance is traveled by the car between t = 0 and t = 4 s d. Draw a graph of the acceleration for the cars motion between t=0s and t=14sHelp me please
- 0s1s 2s 3.s 4s 5s Om 2m 8 m 18 m 32 m 50 m The diagram above presents the position and elapsed time of a motorbike that starts from rest and accelerates at a constant rate. Use it to answer questions 1 and 2. 1. What is the average velocity of the motorbike during first 5 s? A. O m/s B. 5 m/s C. 10 m/s D. 15 m/s E. 20 m/s 2. What is the acceleration of the motorbike? A. O m/s B. 2 m/s C. 4 m/s D. 6 m/s E. 8 m/sAs a train accelerates uniformly it passes successive 850 meter marks while traveling at velocities 1.5 m/s and then 15 m/s. a. For the first mark of the journey, what is the acceleration of the train in m/s sq? b. Determine the train's velocity when it passes the next mark in m/s. c. Determine the time it takes to travel the 1.7-km distance in seconds.0s1s 2s 3s Om 2 m 8 m 18 m 32 m 50 m The diagram above presents the position and elapsed time of a motorbike that starts from rest and accelerates at a constant rate. Use it to answer questions 1 and 2. 1. What is the average velocity of the motorbike during first 5 s? A. O m/s B. 5 m/s 2. What is the acceleration of the motorbike? A. 0 m/s 3. An object moves at a constant speed of 6 m/s. This means that the object: A. Increases its speed by 6 m/s every second C. 10 m/s D. 15 m/s E. 20 m/s B. 2 m/s C. 4 m/s D. 6 m/s E. 8 m/s B. Decreases its speed by 6 m/s every second C. Doesn't move D. Has a positive acceleration E. Moves 6 meters every second 4. A toy car moves 8 m in 4 s at the constant velocity. What is the car's velocity? A. 1 m/s В. 2 m/s C. 3 m/s D. 4 m/s E. 5 m/s 5. A train moves at a constant velocity of 50 km/h. How far will it move in 0.5 h? C. 25 km A. 10 km B. 20 km D. 45 km E. 50 km 6. A boat can move at a constant velocity of 8 km/h in still water. How long will it take…
- An athlete runs around a 400 m race track four times. It takes 400 s to complete his run. A. What is the total distance traveled by an athlete? B. What is the total diaplacement? C. Calculate the speed at which the athlete runs? D. If the athlete started and ended his run at the same point.Calculate his final velocity?Refer to the map below. 1. An athlete runs the 400-meter dash in 40 seconds. What is his/her average speed?A. 1 m/s B. 4 m/s C. 10 m/s D. 100 m/s W 2. Is the velocity of the athlete who runs around the oval zero (0)? Why or why not? A. Yes, because his displacement is zero. B. Yes because he finishes 400 meters in 40 seconds. C. No because his distance and displacement are equal. D. No because the speed and velocity of the athlete should be the same.Please match the following physics equations with their descriptions. Describes how Speed changes over time during acceleration. 1. v = vo + at Describes how distance changes over time during 2. s = vot + 3 at? acceleration. 3. v2 vo? + 2as Describe the relation between speed, initial speed, acceleration and the distance traveled. 4. U As At Describe how average speed is related to distance traveled and time elapsed. >