A bolt is dropped from a bridge under construction, falling 82 m to the valley below the bridge. How much time does it take to pass through the last 17 % of its fall?

Q: A stone is dropped from the roof of a high building. A second stone is dropped 1.40 s later. Part A…

A:

Q: a stone is dropped from the deck of a bridge. the sound of the splash reached the deck 3 seconds…

A: Let h is height of deck from water.Splash was heard after 3 sec.speed of sound=v'=342 m/sg=9.8 m/s2

Q: It was a dark and stormy night, when suddenly you saw a flashof lightning. Six and a half seconds…

A:

Q: 1. Hannah watches a thunderstorm from her living room window. She is concerned that the lightning…

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

Q: 5. For the following motion equations = 2t – 15t + 36t – 22, t > or equal to 0 c. When is the…

A:

Q: A child, who is L = 41 m from the bank of a river, is being carried helplessly downstream by the…

A: The velocity of an object is defined as the ratio of its distance to the time taken ,that is , v=xt…

Q: 6. A stone is dropped into a well and 5 secs later, the sound of the splash is heard. How deep is…

A: The second equation of motion is  s= u t +0.5 at2 where, s is the distance, u is the initial…

Q: 7. A stone is thrown vertically upwards over the top of a well with a velocity of 21 m/s and the…

A: Given: u=21 m/s (upwards)t=5.05 svs=350 m/s

Q: 1. An object was released from rest at a certain height. Then it falls freely for 5 seconds. a.…

A:

Q: A new type of gun is being developed by engineers. The gun will be used to launch a rocket as if…

A: Answer:-  Given  Initial velocity (u) = 0 m/s  Final Velocity (V) = 5 km/s=( 5×1000) m/s  V = 5000…

Q: A sprinter moving at 10 m/s slow down at the rate of 1.4 m/s2.How fast is the runner moving after 3…

A: According to the equation of motion, the velocity after t seconds can be determined.

Q: An inquisitive physics student and mountain climber climbs a 51.0-m-high cliff that overhangs a calm…

A:

Q: 2. You are driving down a street in a car at 50 km/h. Suddenly, a child runs into the street. It…

A:

Q: .A train brakes from 40 m/s to a stop over a distance of 100 m. a) What is the acceleration of the…

A: Given data: Initial velocity (Vi) = 40 m/s Final velocity (Vf) = 0 m/s Distance (d) = 100 m…

Q: A stone is dropped from the deck of a bridge. The sound of the splash reached the deck 3 secs later.…

A: Given; time in which splash reached to deck = 3 sec speed of sound v =342 m/s

Q: A supersonic jet flying at 20 m/s is accelerated uniformly at a rate of 23.1 m/s² for 19 seconus.…

A: As per bartelby guidelines I have solved first question out of multiple questions posted. If you…

Q: 1. Arthur and Betty start walking toward each other when they are 100. m apart. Arthur has a speed…

A: Let both of them meet at time t. Arthur would then have covered distance of 3t m and Betty, a…

Q: A bullet shot from a rifle travels at 1000 m/s. What is the elapsed time between when the bullet…

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Q: A jet fighter pilot wishes to accelerate from rest at a constant acceleration of 5g to reach Mach 3…

A: Given: acceleration, a=5g speed of sound, vs=331 m/s final speed, v=3×331 m/s (three times the speed…

Q: Margareth, driving at 40.0 m/s, enters a one-lane tunnel. She then observes a slow-moving van 205 m…

A:

Q: A rock is dropped from rest into a well. "he sound of the splash is heard 4 s after the rock is r…

A: Distance = speed ×time

Q: ** 64. A roof tile falls from rest from the top of a building. An observer in- side the building…

A: Let yw be the width of the window and vw be the velocity of the tile when it passes the window.…

Q: The Elco Voltmeter company has a robot part delivery system that moves at a speed of 3 ft/s. The…

A:

Q: .A stone is dropped into a well and 4.5 seconds later the sound of the splash is heard. Then a…

A: In this case, the first stone is dropped with zero initial velocity whereas the second is thrown…

Q: 9. A particle is moving on a line is at position s(1)=r' - 7²+8t-2 at time t. a) At what times is it…

A: Given Position of the particle at time t is st=t3-7t2+8t-2  ---1 Then velocity is derivative of…

Q: Tommy loves taking care of a dove. He sent a note to his crush who lives 2.0 km away from his house.…

A: The displacement is a vector quantity which is defined as the difference between the final and…

Q: You are arguing over a cell phone while trailing an unmarked police car by 27.0 m. Both your car and…

A:

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: 26. Patrolman Elmer saw Redentor's FX speeding at a constant rate of 120kph after almost hitting the…

A: Speed of the FX car v2=120 kph=33.33 m/s, initial speed of motorcycle u=0 (from rest), final speed…

Q: An object that is thrown straight up falls back to Earth. This is one-dimensional motion. (a) When…

A: An object is thrown up

Q: 3. A boulder rolls over a 50m high cliff. How fast was the boulder moving if it was found 180 m on…

A:

Q: A motorist travels at a constant speed of 39.0 m/s through a school zone; exceeding the posted speed…

A: Let after 't' time police catch the car in 't' time , distance travelled by policemanS=ut+12at2…

Q: An air force soldier wants to accelerate from rest at a constant acceleration of 6g to reach Mach 3…

A: Given : Acceleration (a) = 6g = 6(9.8) = 58.8 m/s2 Time (t) = 5 s Speed of Mach 3 (v) = 3 times the…

Q: In October 1997 Andy Green broke the sound barrier on land in a jet-powered car. His car accelerated…

A: Given data: Initial velocity (V0) = 0 m/s Final velocity (V) = 341 m/s Distance (s) = 8 km = 8000 m…

Q: 1. A spelunker (cave explorer) drops a stone from rest into a hole. The speed of sound is 343 m/s in…

A:

Q: In physics, what is motion? Additionally, describe different motions.

A: In physics, motion is defined as the change in the position of an object with respect to a fixed…

Q: A car is speeding at 25 m/s (constant) in a school zone. A police car starts from rest just as the…

A: Given data- speed of car v=25 m/s. Police car starts from rest (u=0 m/s) and accelerates at a…

Q: driving at 40.0 m/s, enters a one-lane tunnel. She then observes a slow-moving van 205 m ahead…

A: If collision occur time taken by both must be same and anna car travel 205 m more than van before…

Q: 1. Equanne driving at 30 m/s. enters a one-lake tunnel. She then observes a slow moving van 155 m…

A: Given: velocity of equanne = 30 m/sdistance of van = 155 macceleration of equanne  = -2 m/s2

Q: 101. A truck is traveling east at 80 km/h. At an intersection 32 km ahead, a car is traveling north…

A: (a) Write the formula for the position vector of the truck with respect to the car after time t.

Q: Lightning strikes 2.5 km away from you. How many seconds pass before you hear the thunder? (Hint:…

A: The time requires the thunder to reach to you is:

Q: 20. a) Q: How can you tell from a position-time graph that your motion is steady (constant…

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

Q: an object Falls from rest from the top of a cliff. Another object is thrown downward from the same…

A: a) Take the downward direction to be positive. The equation of motion is given by, Equating…

Q: A man drops a rock into a well. The man hears the sound of the splash 2.50s after he releases the…

A: Given information: Here, t is the time interval between a man dropping a rock and the hearing of…

Q: Sound travels at a speed of 330 m/s. If a firecracker exploded 3625 m away from you, how long does…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: A bolt is dropped from a bridge under construction, falling 90 m to the valley below the bridge. (a)…

A: It is given that,

Q: A runner hopes to complete the 10,000-mm run in less than 30.0 minmin. After running at constant…

A: Runner runs constantly for exactly 27.0 min, and after that  there are still 1100 m to go.  hence,…

Q: Two trains are moving at 30 m/s in opposite directions on the same track. The engineers see…

A: The law of motion the acceleration is, v2=u2+2ax0=302+2ax1ax1=-450

Q: 3. An object has a displacement function s(t) = t- In(2t – 1) cm, where t is in seconds, t > 0. (a)…

A:

Q: Speedy Sue, driving at 32.0 m/s, enters a one-lane tunnel. She then observes a slow-moving van 175 m…

A: The final position of the Sue’s car is

Q: 4. The height, in feet, of a thrown object with respect to time can be modeled by the equation h(t)=…

A: The given equation of the height of the thrown object at any time t is h(t) = -16t2+120t+6…

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 –