You drive your car in a straight line at15 m>s for 10 kilometers, then at 25 m>s for another 10 kilometers.(a) Is your average speed for the entire trip greater than, less than,or equal to 20 m>s? (b) Choose the best explanation from amongthe following:I. More time is spent at 15 m>s than at 25 m>s.II. The average of 15 m>s and 25 m>s is 20 m>s.III. Less time is spent at 15 m>s than at 25 m>s

Q: |A golfer rides in a golf cart at an average speed of 3.10 m/s for 28.0 s. She then gets out of the…

A: The average velocity of the golfer in the  cart vc =3.1 m/s Distance travelled with vc in tc=28s is…

Q: A car has acceleration of 1.20 m/s2 and starts from 2.50 m/s. What is its speed after 5.00 seconds,…

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Q: A parachutist bails out of a plane and falls freely a distånce of 40 meters. Then, the parachute…

A: The time to fall freely t1=2hg=240 m9.81 ms2=2.86 s The speed when he opens the parachute is v=2gh…

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Q: A person can survive a feet-first impact at a speed of about 12 m/s (27 mi/h) on concrete; 15 m/s…

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Q: 2 A stone is thrown straight upward and it rises to a maximum height of 40 m. With what speed was it…

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Q: You are on the roof of a Physics Building, 36 m above the ground. Your physics professor, who is…

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Q: A hypothetical spaceship takes a straight-line path from the Earth to the moon, a distance of about…

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Q: 1. A car travelling at a speed of 60 km/hr reaches its destination in V4 hour. How much distance did…

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Q: You are on the roof of a Physics Building, 50 m above the ground. Your physics professor, who is…

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Q: A toy train rolling on a straight stretch of tracks, initially going 0.31 m/s slows uniformly to…

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Q: In this first example of constant accelerated motion, we will simply consider a car that is…

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Q: woman walks a distance of 504m, with an average speed of 1.4m/s. What time was required to walk this…

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Q: A car initially traveling 19 m/s then accelerates 3.5 m/s? for 5.2 s. What is the car's speed at the…

A: Given Initial speed of car  u = 19 m/s Acceleration of car  a = 3.5 m/s2 time during which car…

Q: A kid in a wagon rolls from rest down a hill and reaches the bottom at 12 m/s. On the next run she…

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Q: If an object travels at a constant velocity, what can we say about its acceleration? What is another…

A: If an object travels at a constant velocity, it has zero acceleration. Another Situation: A photon…

Q: You are on the roof of a Physics Building, 19 m above the ground. Your physics professor, who is…

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Q: A high-performance sports car can go from 0 to 100 mph (44.7 m/s) in 7.9s.  a) What is the car's…

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Q: A car accelerates from rest at 2.5 m/s2, travels with a constant velocity of 90 km/h and then…

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Q: A swan on a lake becomes airborne by flapping its wings and running on top of the water. If the swan…

A: Given The final velocity with which swan takeoff is v = 5.75 m/s. The acceleration of swan is a =…

Q: The graph shows the displacement, Ax, of a walking man as a function of time. 2. 12 8 (m) 4 4 6. t…

A: Given Displacement time graph of an object Concept Velocity = Rate of change of displacement…

Q: You toss a stone straight up and it comes back down in a total time of 6 s, what is the speed of the…

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Q: A runner is moving at 6m/s when they begin to decelerate at 2m/s2 . How far will they travel until…

A: Given:Runner is running at the speed (v) = 6 m/sDeceleration rate (a) = 2 m/s2

Q: Alice is riding a bike at 12 mph, but decides to sprint.  She takes 0.7 s to accelerate to 19 mph.…

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Q: is on a street that has a posted speed limit of vm=75 km/hr and is traveling above the speed limit…

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Q: A toy train rolling on a straight stretch of tracks, initially going 0.31 m/s slows uniformly to…

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Q: A stone is thrown straight up from the edge of a roof, 1000 feet above the ground, at a speed of 12…

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Q: You are driving down the highway late one night at 20 m/s when a deer steps onto the road 35 m in…

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Q: An automobile is driven at 30 mph for 12 min, then at 40 mph for 20 min, and finally 50 mph for…

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Q: You drive for 100 miles at 20 mph. You then drive 100 miles at 60 mph. Your average speed over the…

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Q: A driver in a car is initially traveling at +35.0 m/s when the driver sees a log up ahead on the…

A: Given Initial velocity (U) = 35.0 m/s Final velocity (V) = 0 Retardation (a) = -7.00 m/s2

Q: You drive your car 5.0 km due east at 35 km/hr and suddenly realize that you forgot your wallet. So,…

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Q: My final velocity number is 20 m/s, my time is 19.05 s, my distance is n/a, my acceleration is 0.892…

A: Given data *The final velocity is v = 20 m/s *The given time is t = 19.05 s *The given acceleration…

Q: A 1050 kg car is traveling at a speed of 25 m/s when the driver sees that there is a tree across the…

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Q: The car directly ahead of him is also traveling at 70 mi/hr. Vladimir is keeping what he feels is a…

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Q: • Question 17 A group of bike riders went on a 4-hour trip. During the first 3 hours, they traveled…

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Q: While entering a freeway, a car accelerates from rest at a rate of 2.8 m/s2 for 14.5 s. How far does…

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Q: 1. A person drops a stone from the top of a bridge that is 28.6m high. How long (in s) will it take…

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Q: tortoise crawls the entire 1000.0 meters at a speed of 0.20 m/s. first 200.0 meters at 2.0 m/s,…

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Q: Gretchen runs the first 4.0 km of a race at 5.0 m/s. Then a stiff wind comes up, so she runs the…

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Q: You toss a stone straight up and it comes back down in a total time of 6 s, what is the speed of the…

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Q: A cat is playing in the backyard of his owner's place. It can be seen moving back and forth, such…

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Q: A toy train rolling on a straight stretch of tracks, initially going 0.31 m/s slows uniformly to…

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Q: The car moves in a straight line such that for a short time its velocity is defined by v = (2t3 +…

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Q: A car is moving along a straight road with an initial velocity of v, =13 m/s and an acceleration,…

A: Given data, Initial velocity of the car = 13 m/s Acceleration = 2 m/s2 time = 4 seconds

Q: On a 200 km bike cycle ride, you ride the first 90 km at an average speed of 20 m/s. What must your…

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Q: A car travels 250 m/s for 3 seconds. How far did the car travels in 3 seconds? Choose the correct…

A: Speed of the car, v=250 m/s Time of travel, t=3 s   speed of the car: The speed of the car is…

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 –