Human reaction times are worsened by alcohol. How much further (in feet) would a drunk driver's car travel before he hits the brakes than a sober driver's car? Assume that both are initially traveling at 50.0 mi/h and their cars have the same acceleration while slowing down, and that the sober driver takes 0.33 s to hit the brakes in a crisis, while the drunk driver takes 1.0 s to do so. (5280 ft = 1 mi)

Q: A train is travelling down a straight track at 20 m/s when the engineer applies its brakes,…

A: Given that:Initial velocity u=20 m/sAcceleration a=-1 m/s2Final velocity v=0 m/sTime, t=40 s

Q: A speeding car passes a highway patrol checkpoint, then decelerated at a constant rate. After 5.00…

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Q: If you drive from Santa Cruz to San Jose, and back to the same place you started in 1.5 hours. What…

A: Given: Let, the time to drive from Santa Cruz to San Jose is t1, and the time taken back to the…

Q: If you drive from Santa Cruz to San Jose, and back to the same place you started in 1.5 hours. What…

A: Average Velocity of an object is its total displacement divided by total time taken.  Displacement -…

Q: If it takes a bicyclist 20 seconds to reach a speed of 10 mph from rest, what is her acceleration?…

A: SOlurion: Given that If it takes a bicyclist 20 seconds to reach a speed of 10 mph from rest,  For…

Q: A runner is moving with a speed of 2.68[m/s]. How long will it take the runner to complete a 5.0[km]…

A: The expression for find time taken by the runner to complete the race is t=dv

Q: In a slap shot, a hockey player accelerates the puck from a velocity of 6.5 m/s to 39 m/s in one…

A: The acceleration for the given case is v=u+ata=v-ut=39m/s-6.5 m/s0.0329 s=987.84 m/s2

Q: A high-performance sports car can go from 0 to 100 mph (44.7 m/s) in 5.8 s. (Assume the car travels…

A: (a)Given thatinitial velicity=0 m/sfinal velocity=44.7 m/stime=5.8 secAverage acceleration=final…

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

A: Distance travelled (S) = 40.0 mFinal velocity (v) = 2.05 m/s Time (t) = 7.00 s

Q: Assume that an MX missile goes from rest to a suborbital velocity of 4.50 km/s in 50.0 s (the actual…

A: Given data *The given initial velocity is u = 0 m/s *The given final velocity is v = 4.50 km/s =…

Q: If a running back gets hit while he is moving at 2.24 m/s and experiences an accleration -12.8 m/s2,…

A:

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

A:

Q: The height of a ball thrown in the air is a function of the number of seconds after it is thrown. A…

A:

Q: Two cars leave a stoplight, one 0.500 s before the other. The second car accelerates with twice the…

A: acceleration of first car = a acceleration of second car = 2 a time gain by first car = 0.5 sec Let…

Q: A car with its brakes applied has an acceleration of -1.2 m/s˄2. If its initial velocity is 10 m/s,…

A: Given, a = -1.2 m/s2 u = 10 m/s  t = 5 s  s = ?  According to the Newton's second equation of motion…

Q: (a) It takes a car 5.5 seconds to accelerate from rest to 25 m/s. Calculate the distance traveled by…

A: (a) To calculate the distance traveled by the car while it is accelerating from rest to 25 m/s in…

Q: A cliff diver drops from rest to the water below. How many seconds does it take for the diver to go…

A:

Q: A car is traveling at 96 km/h when the driver sees an accident 75 m ahead and slams on the brakes.…

A:

Q: I am also having trouble solving this problem since it includes the acceleration with its initial…

A: We know from Kinematic equation that distance travelled:s=ut+12at2here given :u=10 m/sa=2.2 m/s2t=2…

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

A: Given value--- While slowing, it moves a distance of 40.0 m in 7.30 s to a final velocity of 1.75…

Q: A soft tennis ball is dropped onto a hard floor from a height of 1.70 m and rebounds to a height of…

A: First, we need to calculate the velocity of the ball just before it strikes the floor. We can use…

Q: An unwary football player collides head-on with a padded goalpost while running at 7.2 m/s and comes…

A: Initial velocity of football player (u) = 7.2 msFinal velocity (v) = 0 msDistance moved while…

Q: Consider two cars, a 700kg Porsche and a 600kg Honda Civic. The Porsche is speeding along at 40 m/s…

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Q: On a 200 km bike cycle ride, you ride the first 90 km at an average speed of 20 m/s. What must your…

A: Given :                Total distance = 200km                First ride = 90km…

Q: Freight trains can produce only relatively small accelerations and decelerations. a) What is the…

A:

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 –