Lesson: Reaction Time What role does reaction time play in applying the brakes to a car in an emergency situation? Estimate the distance a car travels at 100 km/h during your reaction time in braking. How did you use reaction time in the recent disaster you experienced with the typhoon Odette? Give examples for which reaction time is important in sports.

Q: A plane accelerates from rest at a constant rate of 5.00 m/s² along a runway that is 1800 x long.…

A: Acceleration is Length of runway is Initially the plane is at rest, that is, The plane gets its…

Q: Ball bearings are made by letting spherical drops of molten metal fall inside a tall tower called a…

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Q: g) Q: Which object is accelerating faster? A or B? B A h) Q: Which object is slowing down? A, B, or…

A: The acceleration of the particle is given by Where v = velocity of the particle

Q: The greatest height reported for a jump into an airbag is 99.4 m by stuntman Dan Koko. In 1948 he…

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Q: Almost 80% of all traffic accidents involve distracted driving. Looking at a cell phone text message…

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Q: Direction: Solve what is required in each of the following problems. Show a step by step process in…

A: In general, let us assume that u is the initial velocity, v is the final velocity and a is the…

Q: I Review Wrongly called for a foul, an angry basketball player throws the ball straight down to the…

A: Solution:Here as the body is in free fall, the acceleration of the body will be:a =-g = -9.8…

Q: A graph of velocity vs. time of a ship coming into harbor is shown. How would you describe the…

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Q: You throw a small rock straight up from the edge of a highway bridge that crosses a river. The rock…

A: Given: The time taken for the rock to pass by you on its way down when thrown straight up: T = 4.00…

Q: Create and complete a table with your answers for the runner. A runner has an  initial velocity of…

A: Given:-  The initial velocity of the runner is u = 3.5 m/s from time t=0 to t=5sec From t=5 to t=10,…

Q: cart is pushed forward to the right and slowly moves back to the left on its own.  a) Draw a motion…

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Q: Starting from rest, a boulder rolls down a hill with constant acceleration and travels 4.00 m during…

A: Given: Displacement during the first second is d1=4.00m t= 1 sec At rest, initial velocity of…

Q: A taxi traveling along a straight section of road starts from rest, accelerating at 2.00 m/s^2 until…

A: The acceleration of the taxi in the first travel part is a=2.00 m/s2.The final speed of the taxi in…

Q: The figure shows the position of an object as a function of time. x (m) -2+ Part A (s) During the…

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Q: Below are four velocity vs. time graphs labeled (i) through (iv). Identify which graph corresponds…

A: For an object to be at rest the velocity must be zero. The graph (iii) represents the constant zero…

Q: All parts A hot air balloon is ascending with a constant velocity of 10 m/s. When the balloon is 10…

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Q: A construction worker accidentally drops a brick from a high scaffold. What is the magnitude of the…

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Q: Asphere is fired downwards into a medium with an initial speed of 22 m/s. Part A If it experiences a…

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Q: You are given the vzt - graph for an object moving along the x-axis with constant acceleration.…

A: Given vxt graph for an object moving along x-axis with constant acceleration. Constant acceleration…

Q: Part A You are driving through town at 13 m/s when suddenly a car backs out of a driveway in front…

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Q: Please don't use chat gbt

A: velocity v=dtds​a)Given s-t graph is a negative sloped straight linevelocity v=dtds​=slope of…

Q: A student performs an experiment to determine whether a car exhibits constant acceleration during…

A: Since the body starts from rest, u is 0.

Q: Part A Determine the stopping distances for an automobile going a constant initial speed of 94 km/h…

A: Part (A) Write the given data. u=94 km/h=94×518 m/s=26.11 m/sa=-2.6 m/s2t=0.40 s

Q: The position of a ball as a function of time is given by x = (4.3 m/s)t + (-8 m/s²)t². Part A What…

A: Given data:  Position as function of time x = (4.3m/s)t + (-8m/s2)t2 Required: The initial position,…

Q: During a hard sneeze, your eyes might shut for 0.60 s. If you are driving a car at 77 km/h during…

A: Given Data:- Speed of the car is  v=77 km/h   =77 kmh×1000 m1 km×1 h3600 s   =77×10003600    m/s…

Q: Acceleration equals 5.1m/s2. Part B please.

A: Given already that the acceleration a of the block upwards is equal to 5.1 m/s2.Let the initial…

Q: A plane accelerates from rest at a constant rate of 5.00 m/s² along a runway that is 1800 m long.…

A: Acceleration is Length of runway is Initially the plane is at rest, that is, The plane gets its…

Q: During a hard sneeze, your eyes might shut for 0.46 s. If you are driving a car at 70 km/h during…

A: During a hard sneeze, your eyes might shut for 0.46 s.t=0.46 sIf you are driving a car at 70 km/h…

Q: Which velocity-time graph or graphs is correct?

A: Correct answer is option C. Explanation is in next step .

Q: A coin that is tossed straight up into the air. After it is released, it moves upward, reaches its…

A: The coin is moving under gravity Hence we can say that the acceleration is constant and is always…

Q: The position of a particular particle as a function of Submit Previous Answers time is given by ř =…

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Q: Calculate the height of a cliff if it takes 2.35 s for a rock to hit the ground when it is thrown…

A: 1. The time taken by the rock to reach the maximum height from the cliff is v=u-gt1gt1=u-vt1=u-vg…

Q: A ball is thrown vertically with velocity vi from a height of h = 50 m and lands on the ground after…

A: In this question we have to find answer some questions related o the projectile motion. Please give…

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 –