Classes are canceled due to snow, so you take advantage of the extra time to conduct some physics experiments. You fasten a large toy rocket to the back of a sled and take the modified sled to a large, flat, snowy field. You ignite the rocket and observe that the sled accelerates from rest in the forward direction at a rate of 12.5 m/s2 for a time period of 3.50 s. After this time period, the rocket engine abruptly shuts off, and the sled subsequently undergoes a constant backward acceleration due to friction of 5.65 m/s2

Q: Different animals have very different capacities for running. A horse can maintain a top speed of 20…

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Q: To settle an argument Dr Goulding and The Mrs (his wife) decide to have a 40.0 m long snowshoe race,…

A: Distance of race (D) = 40 m Maximum speed of Mrs. (v) = 3 msAcceleration of Mrs. (a) = 0.20…

Q: A tennis ball with a velocity of 24.4 m/s is thrown perpendicularly at a wall. After striking the…

A: The average acceleration of the ball can be given as

Q: Classes are canceled due to snow, so you take advantage of the extra time to conduct some physics…

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Q: The school zone in front of your school has a posted speed limit of 25 mi/h, which is about 11 m/s.…

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Q: A 54.0-g Super Ball traveling at 27.5 m/s bounces off a brick wall and rebounds at 18.0 m/s. A…

A: mass of super ball (m) = 54 g = 0.054 kg Initial velocity (u) = 27.5 msFinal velocity (v) = -18…

Q: A physics book slides off a horizontal table top with a speed of 1.20 m/s. It strikes the floor…

A: Given data:  Initial horizontal velocity (ux) = 1.20 m/s Initial vertical velocity (uy) = 0 m/s Time…

Q: A rocket sled, initially traveling at the rate of v = 160 meters per second, slows down by opening a…

A: Given data: The velocity is v1=160 m/s. The velocity is v2=12 m/s. The value of the constant is…

Q: Captain John Stapp is often referred to as the "fastest man on Earth." In the late 1940s and early…

A: Using equation  if motion we can find the stopping distance  and stopping  time for the runner

Q: Io, a satellite of Jupiter, is the most volcanically active moon or planet in the solar system. It…

A: Acceleration due to gravity on lo (g') = 1.81 ms2Let the mass of fragment = m

Q: A bath toy is floating stationary in water such that half of the toy is above water and half of the…

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Q: Here we go again this time, d = 2.12 m. Suppose the block starts on the track at x = 0. What minimum…

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Q: Two fan carts are in a race. Fan cart A has a uniform acceleration of 5 (cm/s)/s, and starts the…

A: The motion of 2 fan carts are given. 1st fan cart's acceleration and initial position is given. 2nd…

Q: You and a couple friends have entered a diving competition during your March Break. You will be…

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Q: 1c. A student stands at the edge of a cliff and throws a stone horizontally over the edge with a…

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Q: A speed skater moving to the left across frictionless ice at 8.4 m/sm/s hits a 4.8-mm-wide patch of…

A: Given data:  Initial velocity (V0) = 8.4 m/s Distance traveled by skater (s) = 4.8 m Final velocity…

Q: Y1 Y2

A: y1 = 8.0 m final speed v = 7.7 m/s

Q: A 50.0-g Super Ball traveling at 25.0 m/s bounces off a brick wall and rebounds at 22.0 m/s. A high…

A: The expression for the average accelerations is, a→=vf-vi∆t

Q: Different animals have very different capacities for running. A horse can maintain a top speed of 20…

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Q: 2. SpaceX engineers is planning to build a 2-stage rocket which has a-t graph as shown. By their…

A: The acceleration up to 20 seconds is 22 m/s2 which is stage A and from 20 to 30 seconds the…

Q: rts move together along a horizontal frictionless track. A spring coiled in the two carts is…

A: We are given velocity vs time graph. We are given the graph before collision and after collision. We…

Q: A student begins at rest and then walks north at a speed of v₁ = 0.85 m/s. The student then turns…

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Q: At UPS, a sorting line is where boxes move from a horizontal belt to a stainless steel ramp then…

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Q: There are two best friends named Kaela and Georgie. Kaela is on top of the first storey building and…

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Q: initially at rest on the surface of Mars where g = 4 m/s ^ 2 . The mass of the spaceship is 3000 kg.…

A: We know that initially, the spaceship rests on the surface of mars and where g = 4 m/s2 and the mass…

Q: The Cassini spacecraft traveled with a companion module, Huygens, that split off so that it could…

A: Given:  u = 0 m/s  a = 1.352 m/s2 h = 1.4 m

Q: It is 2055 and Elon Musk has just completed his new colony on the tiny planet Zook. He is standing…

A: From equation of motion, s = ut + (1/2)at2 where, s = distance u = initial velocity a = acceleration…

Q: Here we go again this time, d = 4.85 m. Suppose the block starts on the track at x = 0. What minimum…

A: The distance is given as d=4.85 m

Q: A 0.26-kg rock is thrown vertically upward from the top of a cliff that is 32 m high. When it hits…

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Q: A particle moves in one dimension (the x-direction, say) with an acceleration given by a = c/t,…

A: Given : The accleration is given by a = c/t. Where, c = 25 m/s3. The time at which velocity and…

Q: At the construction site of a tall building, a worker is in an elevator descending at a constant…

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Q: A tennis ball with a speed of 27.8 m per s is moving perpendicular to a wall. After striking the…

A: The expression for the required acceleration is,

Q: You throw a m =0.9 kg ball straight up, giving it an initial velocity of magnitude v= 10 m/s.…

A: Given data:  Mass (m) = 0.9 kg Initial velocity (v0) = 10 m/s Acceleration due to gravity (g) = 9.8…

Q: A Bullet with a mass of 5.2 grams is fired out of a rifle. The bullet’s initial velocity is 0…

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Q: You want to figure out just how crazy a driver your friend is. As one of many stop lights begins to…

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Q: Classes are canceled due to snow, so you take advantage of the extra time to conduct some physics…

A: Given Initial velocity of the rocket is v0=0 Acceleration before the engine shuts off is a1=13.5…

Q: A firecracker moves vertically upward and after reaching the highest point in its vertical…

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Q: During a construction work, a safety engineer saw that one of his workers accidentally dropped a…

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Q: Review Concept Simulation 2.3 before attempting this problem. At the beginning of a basketball game,…

A: Given that initial speed  u=7.94m/s final velocity v=0m/s g=9.8m/s2

Q: I am currently learning about kinematics in my physics class. For one of the questions, it asks me…

A: Suppose a car (or any other object) starts from rest and travels a distance s in time t. If it is…

Q: A model rocket is launched from the ground at rest. The acceleration of the rocket is ?⃗ = 90 ?̂ ? ?…

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