1. How quickly do objects accelerate in freefall on Earth, ignoring air resistance (make sure you include units)? In what direction is that acceleration? 2. How fast will an object be falling downwards 3 seconds after being released? ste You throw the bal straight upward while standing at a fixed position. ******* 3. If you throws an object straight up into the air and it reaches its zenith (highest point) after 2 seconds a) How long will it take for the ball to drop back down from its zenith to your hand?

Q: A certain airport runway of length LLallows planes to accelerate uniformly from rest to takeoff…

A: Initially, speed is, v=at=a2La=2aL When take off speed is doubled, v'=2v=22aL=8aL

Q: The question is attached

A: acceleration, a =0.5 m/s2  initial velocity, u = 20 mi/h = 8.94 m/s final velocity, v = 80 mi/h =…

Q: A car traveling at 20 m/s when the driver sees a child standing in the road. He takes 0.80 s to…

A: Solution: Given that,                    speed u = 20 m/s                       time t = 0.8 s…

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Q: 10) You throw a water balloon vertically downwards with a speed of 15 m/s from a height of 29 m…

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Q: A body is thrown vertically upwards with an initial velocity of 100m / s, after 4s of the launch its…

A: Given: The initial velocity is 100 m/s. The velocity after 4 s is 60 m/s.

Q: 1- (Fall 2002) A person with a closed parachute jumps out of an airplane and falls freely for 100m.…

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Q: 1. Brain teaser: When you throw a ball in the air and catch it, does it spend more time climbing to…

A: Given: A ball is thrown in upward direction and catch it.

Q: What is the average acceleration of this car in m/s2? What is the velocity (m/s) after moving for 5…

A:

Q: 1. If a car travels 400m in 20 seconds how fast is it going? 2. You arrive in my class 45 seconds…

A: Given data:  Distance traveled (d) = 400 m Time (t) = 20 s

Q: You are driving at a speed of 30 m/s when a dog runs in front of you. You slam on the brakes at a…

A: (a) The relation between the velocity and acceleration is given by, v=u+at where v= final velocity…

Q: 5.) Bob throws a ball off a building that is 100 ft tall with an initial velocity of 70 ft/sec. We…

A: To solve the given question we will take the help of differentiation.

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: NASA is launching a rocket into space from Earth. This particular rocket burns its fuel for 5…

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

Q: 1. Kath and Yelena always play tennis every Sunday afternoon. When Kath serves the ball to Yelena,…

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

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A:

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: True or False: An object in free fall depends upon its initial velocity to determine if it will be…

A: The term free fall indicates that the object is moving only under the influence of the gravitational…

Q: 2. A toy car moves off the edge of a table that is 1.25m high and lands 0.40m from the base of the…

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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: 2. A ball is rolled on a flat surface with an initial velocity of 2 m/s. what is the ball's…

A: Given:  initial  velocity, u = 2 m/s distance, s = 15 m  time, t = 5 s  s'= 20 m

Q: A stone is dropped from the upper observation deck of a tower, 150 m above the ground. (Assume g =…

A: Given: A stone is being dropped from the upper observation deck of a tower, 150 m above the ground.…

Q: A car is travelling with an initial velocity of 70m/s and a final velocity of 10m/s and then…

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Q: hor vert AX 9002 AX:186m AL lo /s

A: Solution: Given that the vertical and horizontal componetns of the kinematic motion

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: 1. Why is it unrealistic to think you will get to your destination on time if you are running late…

A: Real-life situations are different from the theoretical solutions we get in a notebook. Therefore,…

Q: youtube.com/watch?v=srDeACrSf-o&t=12s     In the video, I drop a ball off a three-story balcony.…

A: The height time equation of dropped ball is h = -4.92t2+c where c is initial height = 0m t =…

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: 10. A basketball player jumps up 0.45 meters above the ground. What is his one way "hanging" time in…

A: Given thatDistance s=0.45mInitial velocity u=0Acceleration a=g=9.81m/s2

Q: Michael Jordan managed to hang in the air for so long when he goes up for a slam dunk. His longest…

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Q: 18. A car traveling at 27 m/s loses control and crashes into a brick wall, coming to a stop in 0.9…

A: Answer 18) Initial velocity of car , Vi = 27 m/s  Final velocity of car , Vf = 0 m/s  Time , t = 0.9…

Q: Question 11 John drove for 3 hours at a rate of 50 miles per hour and for 2 hours at 60 miles per…

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Q: Two motor vehicles, BMW and Ducati, are driving at SLEX southbound lane. At 9:00:00 am they are 100…

A: Let Ducati overtake BMW after a time t seconds.

Q: $ 25 Q3) A motorist is travelling at 20 m/s. He is 60m from a traffic light when he sees turn…

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Q: a) Find the distance (in meters) of the stone above ground level at time t. (b) How long does it…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: The drivers reaction time is equal to 0.65 s and the brakes stop the vehicle with an acceleration of…

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Q: image

A: Let the time spent only driving at 91 km/h = t given average speed= 73.4 km/h

Q: 12. Answer the following about the graph at the right: Speeding up Slowing down Constant velocity…

A: 12.  speeding up during part A as the slope is positive. slowing down during part C as the slope is…

Q: 2. Starting from a pillar you run 200 m east at an average speed of 5 m/s and then run 280 m west at…

A: When the speed of a body is calculated at a particular instant of time it is called instantaneous…

Q: An airplane starts at rest at the end of a runway. If it reaches a speed of 80 m/s in 18 s, what is…

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Q: The fastest 400.0 m time in Olympic history was completed by Wayde van Niekerk (he's from South…

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Q: You have been daydreaming while studying, and watching student pilots take lessons at the Columbus…

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Q: In April 1974, Steve Prefontaine completed a 10.0 km race in a time of 27 min, 43.6 s. Suppose "Pre"…

A: SOlution: Given that Steve Prefontaine completed a 10.0 km race in a time of 27 min, 43.6 s. He was…