The Fastest (and Most Expensive) Car! The table shows test data for the Bugatti Veyron Super Sport, the fastest street car made. The car is moving in a straight line (the x -axis). (a) Sketch a υ x − t graph of this car’s velocity (in mi/h) as a function of time. Is its acceleration constant? (b) Calculate the car’s average acceleration (in m/s 2 ) between (i) 0 and 2.1 s: (ii) 2.1 s and 20.0 s; (iii) 20.0 s and 53 s. Are these results consistent with your graph in part (a)? (Before you decide to buy this car, it might be helpful to know that only 300 will be built, it runs out of gas in 12 minutes at top speed, and it costs more than $1.5 million!)
The Fastest (and Most Expensive) Car! The table shows test data for the Bugatti Veyron Super Sport, the fastest street car made. The car is moving in a straight line (the x -axis). (a) Sketch a υ x − t graph of this car’s velocity (in mi/h) as a function of time. Is its acceleration constant? (b) Calculate the car’s average acceleration (in m/s 2 ) between (i) 0 and 2.1 s: (ii) 2.1 s and 20.0 s; (iii) 20.0 s and 53 s. Are these results consistent with your graph in part (a)? (Before you decide to buy this car, it might be helpful to know that only 300 will be built, it runs out of gas in 12 minutes at top speed, and it costs more than $1.5 million!)
The Fastest (and Most Expensive) Car! The table shows test data for the Bugatti Veyron Super Sport, the fastest street car made. The car is moving in a straight line (the x-axis).
(a) Sketch a υx−t graph of this car’s velocity (in mi/h) as a function of time. Is its acceleration constant? (b) Calculate the car’s average acceleration (in m/s2) between (i) 0 and 2.1 s: (ii) 2.1 s and 20.0 s; (iii) 20.0 s and 53 s. Are these results consistent with your graph in part (a)? (Before you decide to buy this car, it might be helpful to know that only 300 will be built, it runs out of gas in 12 minutes at top speed, and it costs more than $1.5 million!)
Cheetahs can accelerate to a speed of 20.0 m/s in 2.50 s and can continue to accelerate to reach a top speed of 29.8 m/s. Assume the acceleration is constant until the top speed is reached and is zero thereafter. Let the +?-direction point in the direction the cheetah runs.
Express the cheetah's top speed ?top in miles per hour (mi/h).
(I already have the answer to this one) vtop=66.7 mi/h
Starting from a crouched position, how much time taccel does it take a cheetah to reach its top speed, and what distance ?d does it travel in that time?
(I already have the answer to this one) taccel= 3.725 s & d=55.50 m
If a cheetah sees a rabbit 123.0 m away, how much time ?total will it take to reach the rabbit, assuming the rabbit does not move and the cheetah starts from rest?
ttotal=_____?______ s
Cheetahs can accelerate to a speed of 20.0m/s in 2.50 s and can continue to accelerate to reach a top speed of 27.8 m/s. Assume the acceleration is constant until the top speed is reached and is zero thereafter. Let the +x-direction point in the direction the cheetah runs.
Express the cheetah's top speed vtop in miles per hour (mi/h).
Vtop= ______________ mi/h
Starting from a crouched position, how much time taccel does it take a cheetah to reach its top speed, what distance d does it travel in that time?
taccel = ____________ s
d=_____________ m
If a cheetah sees a rabbit 129.0 m away, how much time ttotal will it take to reach the rabbit, assuming the rabbit does not move and the cheetah starts from rest?
ttotal = _________ s
A special racing car starts from rest and accelerates in a straight line with a constant
acceleration of 5.8 m/s². After 376 metres, it deploys a parachute which results in a
deceleration of kv? where v is the speed of the car in m/s and k is a constant (has a unit
of 1/m). If the car's speed slowed down to 37 km/hr 7.5 seconds after the parachute
was deployed, determine the constant k and then give your answer to Z = 1000*|k|
rounded to two decimal places. Note that |k| means the absolute value of k.
Chapter 2 Solutions
University Physics with Modern Physics (14th Edition)
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