27. A driver of a car going 25.0 m/s suddenly notices a stop sign 40.0 m ahead. The braking deceleration rate of the car is 10.0 m/s², but it takes the driver 0.75 s (reaction time) to get the brakes applied. (a) Determine if the car runs the stop sign. (b) Determine the maximum initial speed at which the car could be moving and manage to stop at the sign.

Q: 25. A cart loaded with sand slides forward along a horizontal frictionless track. As the cart moves,…

A: Here is the solution:A. Constant and in the forward direction:This assumes the cart constantly gains…

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Q: Does acceleration depend on the speed of an object? Why or why not? Give an example of a slow object…

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Q: 1. Cars A and B are traveling respectively at the constant speeds of (v₁), = 22 mi/h and (VB) = 13…

A: Relative velocity: The relative velocity () of object relative to object  is given by the…

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A: Write the given values with the suitable variables. u1=80 km/h=80×10003600 m/s=22.22 m/sd1=56.7…

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A: Write the second kinematic equation. Here, h is the height, u is the initial velocity, t is the…

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A: Given that:x(t)=bt2-ct3b=2.40 m/s2c=0.120 m/s2

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Q: the first leg, a dist D₁41 miles, in a time y 1.05 hours, and travels the second leg, a distance D₂…

A: Given that, In 1st leg Distance D1=41miles Time T1=1.05hr In 2nd leg Distance D2=137miles Time…

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Q: A car accelerates from rest at a rate of 5.00 m/s2 and travels a distance D. The car then reverses…

A: Given data: Acceleration of the car, a=5.00 m/s2 Average speed of the car, v=20.0 m/s Initial speed…

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Q: Which one of the following objects has a average speed of 20 mi/hour? O A car moves a distance of 40…

A: Required : Which car has velocity 20 miles/hr

Q: 2. A crate is given an initial speed of 3.0 m/sup a 25° inclined plane. As (a) What is the…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: A squirrel runs along an overhead telephone wire that stretches from the top of one pole to the…

A: NOTE- As per our guidelines we are supposed to answer  only one question. Kindly repost other…

Q: Assume that the brakes in your car create a constant deceleration of 3.3 m/s regardlesss of how fast…

A: According to kinematics V2-u2=2aS S=ut+(1/2)at2 where S=distance covered          u=Initial speed…

Q: A steel ball is dropped onto a hard floor from a height of 1.50 m and rebounds to a height of 1.45…

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Q: For 10 seconds, a racer accelerates at a=5t+2t m/s2 after starting at rest. After that, the brakes…

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Q: A sprinter runs the length of a running track of length 150 m. To start, she accelerates at 5.0 m/s?…

A: Given data:  Total length of the running track = 150 m Acceleration (a) = 5.0 m/s2 for 2.0 s…

Q: The brakes are applied to a moving car, causing it to uniformly slow down. While slowing, it moves a…

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Q: You attach a meter stick to an oak tree, such that the top of the meter stick is 1.67 meters above…

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

Q: A car is at rest at the top of a driveway that has a slope of 18.4 degrees. Unbeknownst to the…

A: Answer Given  Angle of inclination θ = 18.4° Initial velocity u = 0 m/s Distance s = 7.31 m

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A: Bus is moving with velocity and having acceleration.  When coin is tossed upward then it have same…

Q: o of hikers is to travel x km by bus at an average speed of 48 km/h to an A group unknown…

A: distance traveled by bus = x Distance covered while walking = x Time for lunch and rest = 2 hours…

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Q: While entering a freeway, a car accelerates from rest at a rate of 2.40 m/s2 for 12.0 s. (a) Draw a…

A: Given  Initial velocity u = 0 Acceleration a = 2.4 m/s2  time taken t =12 sec

Q: A car starts from rest and travels for 10.0 s with a uniform acceleration of +2.0 m/s?. The driver…

A: Given that :a=2 m/s2t=10 sa'=-1.5 m/s2t'=1 swhere,a→ accelerationt→time of…

Q: Alcohol consumption slows people's reaction times. In a controlled government test, it takes a…

A: Given data:  Initial velocity of car (v) = 89 km/h Reaction time when driver is sober (t1) = 0.31 s…

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Q: (a) What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a…

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Q: To stop a car, you require first a certain reaction time to begin braking, during which the car…

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Q: 10. A person is driving along a straight highway at a speed of 22.0 m/s when the traffic light which…

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Q: A snowboarder on a slope starts from rest and reaches a speed of 1.5 m/s after 9.9 s. (a) What is…

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Q: You are a football player running with an initial velocity 0f 7.2 m/s [N]. You serve to avoid a…

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Projectile Motion