1. The speed of the train increased from 15 mi/h to 25 mi/h in a distance of 500 ft. Calculate the average acceleration in ft/s.
Q: 6. If an object's position as a function of time is given by x(t) = 3.00t?e-0.5t, what is its…
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Q: In m/s?, what is the acceleration when t = 7.5 sec? Express your answer as an integer, not as a…
A: The acceleration at a time in velocity-time graph represents the at that time.
Q: 11). How long does it take you to travel 200.5 meters if you constantly accelerate from 2.50 mls to…
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Q: 23. A company estimates that the marginal cost (in dollars per item) of producing x items is 1.92 –…
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Q: 1. One car travels due east at 40km/h and a second car travels north at 40km/h. Are their velocities…
A: Given: The velocity of the first car is 40 km/h in the east. The velocity of the second car is 40…
Q: A cyclist travelling initially at 14 m/s south, brakes smoothly and stops in 4.0 s. What is the…
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Q: 3, An object is accelerated from rest at a constant rate of S.00 m/s'. What will be its speed after…
A: Given data The acceleration of the object is given as a = 5 m/s2. The initial velocity of the…
Q: A car is travelling at the speed of V m/s on a straight, level road. After the brakes are applied at…
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Q: While driving south on hwy 400, Jim gets stuck travelling at 1.9 m/s behind a slow truck. He finally…
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Q: 3. A rocket-powered sled moves along a track, eventually reaching a top speed of 173 m/s to the…
A: The initial speed of the sled: (To the east)Time taken: The final speed of the sled: (As the sled…
Q: 11. An object moving with uniform acceleration has a velocity of 10 ft/s in the positive x direction…
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Q: 9. The acceleration of an object is given by a(t) = e-. If the object has an initial velocity of 2…
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Q: An object is thrown upward with an initial velocity of 20m/s. How high does it rise?
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Q: 29. A 150 m long train is moving with a uniform velocity of 45 km/h. The time taken by the train to…
A: Given value--- length of train = 150 m. velocity of train = 45 km/h . length of bridge = 850 m. We…
Q: 3. The explorer took 60 s, 130 s, and 70 s to travel the 30 m, 20 /2 m, and 140 m north distances,…
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Q: At the end of a race a runner decelerates from a velocity of 9.10 m/s at a rate of 2.40 m/s2. (a)…
A: Velocity, u = 9.10 m/s Deceleration, a = 2.40 m/s² Time, t = 4.70 s
Q: 3. A fighter jet has a liftoff speed of 286 mph. what minimum constant acceleration does this…
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Q: The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint, a…
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Q: 2. An airplane travels 280 m down the runway before taking off. If it starts from rest, moves with…
A: there are three equations of motion v = u + at v2 = u2 + 2as s = ut + 0.5 gt2 here , u = initial…
Q: A ball is fired downwards into a medium with an initial speed of 26 m/s. If it experiences a…
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Q: 3. A biker starts with an initial velocity of 10 m/s until it reaches a velocity of 30 m/s in 2…
A: The initial velocity of bike u = 10 m/s The final velocity of bike v= 30 m/s. Time t= 2 sec. Let…
Q: 15 - Chapter 2- questn-26 The velocity-time graph of an object moving along the x-axis is given in…
A: The acceleration is the rate at which the velocity of the body changes. If velocity does not change…
Q: 7. Prashana runs a distance of 10.5 km in 32 minutes. What is her average running velocity? O 0.33…
A: Given data: The distance traveled is d=10.5 km. The time taken is t=32 min.
Q: 1. A train leaves the station on a 50 km commute. The train must make a 60-second stop every 1.0 km…
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Q: A car starts from rest, then accelerates at 1.20 m/s? for 7.00 s. It hits the brakes, slowing to a…
A: Velocity of car after 7 sec By, v = u+at v = 0 + (1.2×7) v = 8.4 m/s
Q: 4. Starting from rest, a boat increases its speed to 4.12 ml s with constant acceleration. (a) What…
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Q: If a stone is thrown straight upward with the initial velocity Viy=7 m/s, what is the velocity of…
A: Given that initial velocity is viy=7 ms and the time is t=10 s
Q: 8. In front of a car traveling at a constant speed of 90 km/h, a truck is driven at a speed of 60…
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Q: 1. An object moves with constant acceleration 4.00 m/s? and over a time interval reaches a final…
A: Data Given , Acceleration ( a ) = 4 m/s2 Initial velocity ( u ) = 6 m/s Final velocity ( v ) = 12…
Q: 4. A car company claims that its car can accelerate from rest to a speed of 28.0 m/s in 20.0 s. Find…
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Q: . A particle moves according to the equation x = 2t³ - 2t + 1, where x is in meters and t in…
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Q: An object moves along the x axis according to the equation x-2.852-2.00+ 3.00, where x is in meters…
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- A car starts from 2.00 m/s and accelerates at 4.00 m/s2 for 6.0 s, it coasts for 5.00 s, and then slows down at a rate of 2.00 m/s2to a stop. How far has it traveled, in meters? Your answer needs to have 3 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.9. A speedboat increases its speed uniformly from 20.0-m/s to 30.0-m/s in a distance of 200-m. Find (a) the magnitude of its acceleration and (b) the time it takes the boat to travel the 200-m distance. Answers: (a) 1.25 m/s? (b) 8.00 s12. SERCP11 2.1.P.007. A motorist drives north for 36.0 minutes at 85.5 km/h and then stops for 15.0 minutes. He then continues north, traveling 130 km In 2.00 h. (a) What is his total displacement? km (b) What is his average velocity? km/h Need Help? Read It Watch It
- 3. A car starts from rest with an acceleration of 2.0 m/s^2. What is its velocity after it has gone 200.0 m?1.) An acceleration of 90.0 m/s^2 was experienced by a rocket which was launched upward. The acceleration stopped after 10.0 seconds when it run out of fuel . What is the highest speed (m/s) that the rocket experienced?A car is moving along a straight road with an initial velocity of v;=23 m/s and an acceleration, a=6 m/s². What is the distance traveled (in m) after t=2 s? A. 58 В. 232 С. 116 D. 174 E. None
- 14. The speed of a nerve impulse in the human body is about 100 m/s. If you accidentally stub you toe in the dark, estimate the time it takes the nerve impulse to travel to your brain. (Assume that you are approximately 1.70 m tall and that the nerve impulse travels at uniform speed.)1. Starting from a pillar, you run 200 m east (the +x-direction) at an average speed of 5.0 m/s, and then run 280 m west at an average speed of 4.0 m/s to a post. Calculate (a) your average speed from pillar to post and (b) your average velocity from pillar to post.1. A car travelling at 4 m/s accelerates uniformly. The car travels 200 meters in 28 seconds. Determine the acceleration of the car
- 3) 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)2. A subway train starts from rest at a station and accelerates at a rate of 1.60 m/s² for 14.0 s. It runs at constant speed for 70.0 s and slows down at a rate of 3.50 m/s² until it stops at the next station. Find the total distance covered.6. A motorcycle starting from rest and undergoing constant acceleration reaches a velocity of 21.0 m/s north in 8.4 s. Calculate the average acceleration.