4. Which of the following sentences describes an example of instantaneous velocity? A.The hot-air balloon rose upward 42 meters in 12 seconds. B. The pitcher can throw a baseball that moves at 42 meters per second. C. The runner moved 18 kilometers in her first 2 hours of the marathon. D. At the 10-second mark, the submersible was sinking downward at 25 meters per second.

Q: 4. The motion of a radio-controlled car, initially travelling east in a straight line across a…

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Q: 2. An object's motion is described by the following graph of velocity vs. time: What is the object…

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Q: 1. A car accelerates from rest to 20.0 m/s in 2.00 seconds, then maintains a velocity of 20.0 m/s…

A: Given:- The velocity of the  car from rest to the 20 m/s in 2.0 sec  Then after the velocity of the…

Q: 1. The diagram shows the velocity-time graph for the motion of a machine's cutting tool. The graph…

A: As u have not provided the ordinates on negative y axis . Let us consider the ordinate corresponding…

Q: 1. The graph below shows the speed-time motion of a car for the first 40 seconds. 25 Speed (m/s) 20…

A: We have a velocity-time graph of a car which reaches a maximum velocity of 20 m/s in the first 10s…

Q: 9. A rocket is launched from Wallops Island: a. The rocket leaves the ground from rest and reaches a…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: 1. Which of the following pairs of graphs shows the displacement versus time and the velocity versus…

A: Ball through up from the ground Form equation of motion S = ut+ 12at2 When we through the ball up…

Q: 5. The motion of a particle is defined by the relation x = 6t4 − 2t3 −12t2 + 3t + 3, where x and t…

A: Acceleration of a body is the second order derivative of displacement with respect to time. a=d2xdt2…

Q: 8. Using this graph, which is a speed-time graph, answer the following questions: 40- 30- 20- 10 of…

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Q: 6. A bus makes a trip according to the position-time graph shown in the illustration. What is the…

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Q: 3. The world's fastest coconut tree climber takes only 4.9 s to climb 9.0 m (up) a coconut tree.…

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Q: 5. An object released from rest, falls toward the earth with an acceleration of 10 m/s. Fill in the…

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Q: 1. A car accelerates from initial velocity of 10 m/s. the acceleration is increasing uniformly from…

A: We know that  a=dvdt v=dsdt

Q: 4. What is the velocity of a plane that traveled from 562 miles from Detroit to Mackinaw City in…

A: Since we are authorized to answer only one question in a single request I am answering first…

Q: 74. In 1954 the English runner Roger Bannister broke the four-minute barrier for the mile with a…

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Q: 1. A car covers a distance of 30 miles in 1/2 hour. What is its speed in miles per hour and in feet…

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Q: 1. The graph below represents the motion of a car during a 6-second time interval. a) What is the…

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Q: 07. At this point, they have 3.4 miles more to go before they reach the finish line. What time will…

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Q: 40 - An object with an initial velocity of 40 m / s starts to decelerate smoothly with an…

A: Given data: Initial velocity of the object, u=40.0 m/s Deacceleration, a=-4 m/s2          - sign…

Q: 1. A man jogs 5.0 km (5000 m) in 27 minutes. a) What is the time interval (At) in seconds? b)…

A: Given that  Distance = 5000m  Time = 27 min

Q: 9. A student took 15 minutes to cycle from his house to school. He starts from rest and reaches a…

A: Motion can be uniform or accelerated. Attributes like velocity, displacement, etc define motion. We…

Q: 5. A child throws a ball straight up in the air, which then falls and bounces off the floor. The…

A: #5 From the given figure following quantity can be observed: The initial velocity is u=4 m/s. The…

Q: 2. Which has a greater acceleration, a bike slowing from 6 m/s to a stop in 8 seconds or a car…

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Q: A car travels 21 miles in 20 minutes. a. How many hours did the car spend traveling? b. What was the…

A: given-         Distance of travel =21 miles         Time taken = 20 min   a)   time taken by car in…

Q: 39. In 1967. New Zealander Burt Munro set the world record for an Indian motorcycle, on the…

A: Since you are posted more than one question, we will answer the first question(question no.39). If…

Q: a car has an acceleration of 4m/s2. Explain what this mean.

A: Given :  Acceleration of the car, a = 4 m/s2 Required : Meaning of acceleration of the car.

Q: 1. While on vacation, Lisa Carr traveled a total distance of 440 miles. Her trip took 8 hours. What…

A: Given data: 1.  Total distance travelled, d=440 mi; Time taken, t=8 h 3.  Distance covered by the…

Q: 7) Rocket-powered sleds are used to test the human response to acceleration. If a rocket- powered…

A: Given u = 0 v = 444 m/s t = 1.83 sec

Q: 11. A steel ball is dropped from a height of 100 meters, and is accelerating due to gravity, which…

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Q: 16. A physics student rides a moped for 1 hour going 30 mph, then spends 1.5 hours not moving, and…

A: Given data: Speed v1=30mph Time t1=1 hr Speed v2=0mph Timet2=1.5hr Speed v3=30mph Time t3=2 hr

Q: 34. The graph shown below represents straight-line motion for a toy car. Position Versus Time o' 2 4…

A: Speed of the car is fastest when the slope of the distance versus time curve(straight line) has…

Q: 1. Below is a velocity-time graph of a marathon runner running down a racetrack over a period of 8…

A: To determine: The acceleration of the runner during the first 4 seconds.

Q: What is the average and Instantaneous acceleration? What is the difference between them? Write a…

A: Average acceleration : average acceleration is defined as change in velocity divided by total time…

Q: 4. A car starts from rest and accelerates at the rate of 2ms" for 5 seconds. It maintains t velocity…

A: Given values: Initial velocity, u1=0 m/s Acceleration for first 5 s, a1=2 m/s2 t2=5 s

Q: On distance-versus-time graph, a horizontal straight line graph corresponds to a motion with

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Q: 6. *If you traveled one mile at a speed of 100 miles per hour and another mile at a speed of 1 mile…

A: Solution : Given that, Traveled 1 mile at a speed = 100mph Another mile at a speed = 1mph Total…

Q: During the late 1940's, Colonel John Paul Stapp was a pioneer in studying the effects of…

A: maximum speed (u) = 632 mph acceleration = - 46.2 g final speed (v) = 0 ms

Q: 5. A stone is thrown vertically downwards with a velocity of 10 m./sec. , and gravity produces on it…

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Q: 1. What is the velocity of a motorcycle that is traveling 10 meters in 3.5 seconds? 2. A high school…

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Q: 6) A car slow down velocity from 28 m/s to 12 m/s and covers 300 meters. a) Find the acceleration?…

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Q: Sketch position vs. time, velocity vs. time, and acceleration vs. time graphs as a cart moves up a…

A: Answer:   As per the data given in the question, When cart moves up a ramp, reaches the maximum, and…