A motorist travels for 2h at 70 km/h and 1h at 100 km/h. What is her average speed for the trip? *

Q: A red car and a green car move towards each other; below we see a graph of their motion. At t 0…

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Q: What is the acceleration of the car described by the graph below? What is the distance travelled?…

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Q: Refer to Multiple-Concept Example 5 to reviewa method by which this problem can be solved. You are…

A: Given Duration t = 2.56 s Final velocity v = 4.84 m/s Deceleration a = 3.67 m/s2

Q: What is the average velocity of the racecar as it crosses the finish

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Q: A student drives the 100-mi trip back to campus after spring break and travels with an average speed…

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Q: Almost 80% of all traffic accidents involve distracted driving. Looking at a cell phone text message…

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Q: A group of college students eager to get to Florida on a spring break drove the 820-mi trip with…

A: Average speed is the ratio of the total distance covered  to the total time taken to cover the…

Q: You are driving home from school steadily at 99 km/h for 190 km . It then begins to rain and you…

A: Given data:  Speed during first 190 km S1 = 99 km/h d1 = 190 km Speed after slowing S2 = 63 km/h…

Q: The velocity vs time graph for a new car is show below: Determine the acceleration of the car…

A: Given : A velocity time graph

Q: A ball is thrown upward at time t=0 from the ground with an initial velocity of 6 m/s (~ 13 mph).…

A: Introduction: Given problem is based on the Projectile motion. Projectile motion is one the type of…

Q: A bike starting from rest acquires a speed of 40 m/s in 20 seconds. Then, the bike travels with this…

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Q: Which of the following five acceleration versus time graphs is correct for an object moving in a…

A: Given Data : The velocity of the object od given as v=20 ms

Q: A cyclist rides 60 kilometres at constant speed of 40 km/h. a        Sketch the distance–time…

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Q: A car starts from stop and travels 594 meters in 35 seconds. What is the average acceleration of the…

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Q: A cyclist, starting from rest, travels in a straight line for 10 minutes. 1. During the first 2.0…

A: Given the uniform acceleration is 0.067 m.s-2 for the first two minutes. Therefore the velocity for…

Q: Cars A and B approached each other on a straight road from points 460 m apart. A has an initial…

A: Let x is the distance covered by the car A . Then the at the point of meet the equation of motion of…

Q: A car traveling 97 km/h is 240 m behind a truck traveling 81 km/h . Part A How long will it take the…

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Q: A body moving in a straight line. The following equation determines its location (3-x=2+t(t),…

A: Position  3-x = 2+t(t)  3-x = 2 + t2  x = 1 - t2

Q: A rocket, initially at rest on the ground, accelerates straight upward from rest with constant…

A: Given data:  Initial velocity from ground = 0 m/s Acceleration (a) = 44.1 m/s2  Time (t) = 5.00 s…

Q: Suppose that at the end of its trip, the train slows to a stop from a speed of 30.3 km/h in 5.54 s.…

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Q: A student performs an experiment to determine whether a car exhibits constant acceleration during…

A: Since the body starts from rest, u is 0.

Q: The figures below show two cars moving toward each other and the position versus time graphs for…

A: Initial distance of the green car is xg=270 m Initial distance of the red car is xr=-35 m ( Here -ve…

Q: The area under the line in a velocity vs time graph represents the acceleration O velocity O change…

A: Introduction: The velocity of the object is defined as the rate change of velocity with respect to…

Q: A motorist drove from Bristol to Bath at an average speed of 40 mph and then from Bath to Chippenham…

A: Given  Average speed from Bristol to Bath is               40 mph  Average speed from Bath to…

Q: A sprinter starting from rest on a straight and level track is able to achieve a speed of 17 m/s in…

A: The average acceleration can be given by aavg=v-ut

Q: What is the average velocity for each leg of the flight? Include units

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Q: What is the slope of the straight line for a distance versus time graph? (a) zero (b) average speed…

A: Since  Average speed = distance / time  So, slope of distance versus time graph gives average speed

Q: A ball is thrown straight upward, and it reaches a maximum height of 2.80 seconds.   a.) How do you…

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Q: Electric tricycle (commonly known as the e-trike) is slowly emerging as an environmental-friendly…

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Q: A lead ball is dropped into a lake from a diving board 5.0 m above the water. After entering the…

A: Given data *The height of the ball from the diving board is h1 = 5.0 m *The ball reaches the bottom…

Q: An Olympic track runner starts from rest and has an acceleration of 1.5 m/s2 for 3.9 s, then has…

A: Initial velocity of runner (u) = 0 m/s Acceleration (a) = 1.5 m/s2time (T) for which the runner…

Q: Find the average acceleration of a northbound subway train that slows down from 12m/s to 9.6m/s in…

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Q: A student drives the 105-mi trip back to campus after spring break and travels with an average speed…

A: Given data *The distance travelled by the student is s = 105 miles *The time travelled by the…

Q: 1. Which of the following graphs depicts constant velocity? A and B OA and C B and D

A: We know that velocity = dx/dt if velocity is constant then slow of x -t curve must be constant or in…

Q: You jog at 9.5 km/h for 5.0 km , then you jump into a car and drive an additional 19 km Part A With…

A: The average speed of the body is the total distance traveled by the body divided by the elapsed time…

Q: A person who walks for exercise produces the position-time graph shown. Calculate the average…

A: Solution The average velocity of any segment can be obtained by calculating its slope Segment A…

Q: An object moves in a straight line in one dimension as show below. What can be concluded about the…

A: Given data: Position - time graph

Q: A car is initially travelling at 50.0 km/hr. The brakes are applied and the car stops over a…

A: Given: Initial velocity of car, u=50.0 km/h The brakes are applied and the car stops over a distance…

Q: The average speed of a car is 27 m/s during the first 10 seconds of acceleration. What is the…

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Q: Question 2 (Select all that apply) In kinematics, if acceleration is constant and non-zero. ) The…

A: Case 1, If the position and time graph is linear. For example,  The position equation is x(t)=at+b…

Q: The diagram represents the acceleration versus time graph of an object. Which statement is true…

A: from the graph we can clearly see acceleration of body is zero throughout the motion.

Q: 7. Which of the three graphs below show constant velocity and constant acceleration? Explain. t

A: NOTE:As per barteby guidelines, we can answer only first question. For remaining questions please…

Q: Directions: It is a Problem-Solving test, thus, you need to show your solutions in solving the…

A: Given: for the first case: The intial initial speed of the car is 35 km/h. The final speed of the…

Q: A student drives the 105-mi trip back to campus after spring break and travels with an average speed…

A: a) Total distance = 105 mi average speed for first part of trip = 64mi/hr time for first part of…

Q: A person runs 800 m at an average speed of 6 m/s and then the next 800 m at an average speed of 8…

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Q: Average speed question The graph shows vx versus t for an object moving in a straight line. What is…

A: Given v-t graph time 0 to 9 sec When v-t graph is given then displacement=area of v-t graph on time…

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –