From the top of a  90 m high cliff, a student  throws a rock vertically downwards with a velocity of 7 m/s. How long will it take for this rock to reach the bottom of the cliff? A.) 4.8 s B.) 5.1 s C.) 2.6 s D.) 3.6 s

Q: The speed limit on a particular freeway is 28.0 m per s (about 101 km per hour). A car that is…

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Q: 9 A lion is watching a zebra from 35 m behind it. Both are stationary. The lion then starts chasing…

A: Given a lion is watching a zebra 35 m behind. The lion starts chasing with a acceleration 3 m/s² for…

Q: Jayce threw his softball high in the air as Yukari looked down from her-storey home to see how high…

A: Given quantities: initial velocity (u) = 30 m/s initial height (h) = 1.22 m acceleration due to…

Q: Two friends watch a jogger complete a 400 m lap around the track in 100 s. One of the friends…

A: distance, d = 400 m time, t = 100 s

Q: A ball is thrown upward from the top of a 30 meter tall building. The call intuí speed 10 m/S.…

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Q: A car accelerates from a stop light at 3m/s^2. How many seconds until it is traveling at a velocity…

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Q: A golfer is on a hill, 17 m above the ground. She hits a golfball from the hill at 11.7 m/s, 42°…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Elsa?! Bida-bida. In Arendelle, Queen Elsa loves to show magic tricks to the kids and so, sje begins…

A: Height of Olaf h=1.63 m and maximum height above Olaf's head gained by Elsa h1=5.37 m in time…

Q: 18. A golf ball rolls up a hill toward a miniature-golf hole. Assume that the direction toward the…

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Q: A car accelerates from rest at 4 m/s2. What is the velocity of the car after 4 seconds? What is the…

A: Write the kinematic equation to find the velocity of the car. vf = u + at vf = 0 + ( 4 m/s2 x 4s )…

Q: A bowling ball traveling with constant speed hits the pins at the end of a bowling lane 17 m long.…

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Q: A ball is thrown from the top of a school building 55m high with an initial velocity of 8 m/s.…

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Q: You are talking with a cell phone while trailing a police car by 20m; both ypur car and the police…

A: Distance between the person’s car and the police car after 2.0 s Let the person’s car be at the…

Q: A rocket accelerates from rest at a rate of 80 m/s^2. How long does it take for the rocket to reach…

A: Solution: Given,  acceleration of rocket(a) = 80 m/s2 final velocity of rocket(v) = 8000 m/s initial…

Q: Jack drops a stone from the rest off of the top of a bridge that is 20.4 m above the ground. After…

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Q: A boy runs for 21 seconds.  His minimum speed is 2.8 m/s, while his maximum speed is 4.5 m/s.…

A: Given,  t = 21 seconds  u = 2.8 m/s  v = 4.5 m/s  As we know from the Newton's first equation of…

Q: trooper is moving due south along the freeway at a speed of 22 m/s. At time  t = 0,  a red car…

A: Given The speed of troopers is vt=22 m/s. The constant velocity of the car is vc=40 m/s. The…

Q: Buzz Lightyear is standing on top of a building on the planet Zook. He wishes to determine the…

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Q: A car accelerates from rest at 4 m/s2. What is the velocity of the car after 4 seconds? After 4…

A: The required velocity of the car is, The required acceleration is,

Q: After a big snowfall, you take your favorite rocket‑powered sled out to a wide field. The field is…

A: distance (d) = 221 m Acceleration (a) = 3.95 ms2Initial velocity (u) = 0 m/s

Q: You are riding a bus traveling forward at 34 m/s. You move toward the back of the bus at 2m/s…

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Q: A briefcase (small bag) is thrown at a velocity of 147.2 î m/s at a height of 9.1 m. At the same…

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Q: A car in stop-and-go traffic starts at rest, moves forward 20 mm in 8.0 ss, then comes to rest…

A: Given: Let the maximum velocity be = v m/s Distance moved= 20 m time = 8s The graph.

Q: The height of a ball thrown in the air is a function of the number of seconds after it is thrown. A…

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Q: A rock is dropped from the top of a 400-foot cliff. Its velocity at time t seconds is y(t) = -32t…

A: The first and the second equation of motion are v = u + at s = u t + 0.5 at2 where, u is the initial…

Q: Assad a taxi driver is moving at a velocity of 15 m/s. Then he realized that he had only 30 seconds…

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Q: A rocket accelerates from rest at a rate of 70 m/s2. (a) What is its speed after it accelerates for…

A: Given that, Initial speed (u)= 0 Acceleration (a)= 70 m/s² Time (t)= 53 s Let the final speed be v

Q: 2.2 Speed and Velocity A movie stunt double is supposed to run across the top of a train (in the…

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Q: A gazelle and a mouse participate in a race over a 2.00 km long course. The gazelle travels at a…

A: Time taken by gazelle to complete 1.6 km= 1600/15 = 106.66 s Time taken by mouse to complete 2 km=…

Q: 1. New York to San Francisco. It travels at an average speed of 500 miles per hour. What is the…

A: Given: Average speed = 500 mph => 500 x 1.6 = 800 kph;

Q: A motorcycle travels from a velocity of - 15 m/s to a velocity of -22 m/s in 30 m distance. What is…

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Q: you walk from your house to a local coffee shop to get an espresso. You average  a speed of 2.4 m/s…

A: Average speed = total distance travelled /total time taken

Q: 2) A car traveling with a velocity 80 km/hour slows down at a constant 0.8m/sec2 just by “letting up…

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Q: 95. A police car waits in hiding slightly off the highway. A speeding car is spotted by the police…

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Q: A Ferrari traveling well over the posted speed limit, passes a parked Tennessee State Trooper who…

A: The average speed of the Ferrari is

Q: 1.5 1.0 0.5 0.0 Lwwwwww

A: The given graphs show the change in the position of the tennis ball. Therefore, the position and…

Q: A basketball rolls away from you with a constant speed until hit hits a large bump at the end of…

A: Here given a basket ball rolls away at a constant speed. It hits a large bump and rools up on it.…

Q: You drive your car in a straight line at15 m>s for 10 kilometers, then at 25 m>s for another…

A: Part (a): The expression for the average speed of the car is, The time taken by the car to cover a…

Q: 2. Alyssa and John went on a date along a lake. They both decided to take a swim and dive froma…

A:

Q: 6) A potato is launched vertically upward with an initial velocity of 100 ft/s from a potato gun at…

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…

Q: 9 A lion is watching a zebra from 35 m behind it. Both are stationary. The lion then starts chasing…

A: SolutionGiven,Lion is watching Zebra from 35m behindacceleration of Lion = a1 = 3mj2  for…

Q: A car moving at 37 m/s begins to accelerate at a rate of 1.4 m/s2. What will be the car's final…

A: Given data:  Initial velocity (u) = 37 m/s Acceleration (a) = 1.4 m/s2 Time (t) = 6.7 s Required:…

Q: A ball is dropped from the top of the cliff 25.0-meter high. (a) How long will it take for the ball…

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Q: 4

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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 –