A drag racer crosses the finish line, and the driver deploys a parachute and applies the breaks to slow down. The driver begins slowing down at 6 seconds and the velocity becomes 28m/s. When the time changes to 12 second, the velocity has been reduced to 12.5 m/s. What is the average acceleration of the dragster?

Q: A rocket-powered sled moves along a track, eventually reaching a top speed of 209 m/s to the east.…

A:

Q: Timnit has to pull the weeds in her mother's garden. She notices a caterpillar crawling along the…

A: Given quantities: The speed of the caterpillar (V) = 0.125 m/s Time taken to travel (t) = 8 seconds…

Q: June walks for 15 minutes at 0.165 km/ min but then she remembers she is suppose to meet her friend…

A:

Q: A rocket-powered sled moves along the track, eventually reaching a top speed of 230 m/s to the west.…

A: Given:-             Speed u =  230 m/s.    Final speed v = 0 m/s         Time taken t = 4.42 s…

Q: An accomplished physical therapist stays in shape for her job by running on a track. She passes one…

A: Write the given values with the suitable variables. u=1 m/sa=0.5 m/s2t=3.1 s Here, u, a, and t are…

Q: Traumatic brain injury such as concussion results when the head undergoes a very large acceleration.…

A: Hence, Hardwood floor magnitude      1670.2m/s2 Hardwood floor duration     1.59 ms Carpeted…

Q: A car is traveling at 40 mph on a straight road. The driver applies the brakes for 3 sec, producing…

A: initial velocity u= 40mph =17.88m/s duration of brake applied t = 3sec deceleration a = -5.5ft/sec2=…

Q: A jeepney driver is driving at a velocity of 72 km/h. A dog 50 m away suddenly crosses the road and…

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Q: Jenny and Alyssa are members of the cross-country team. On a training run, Jenny starts off and runs…

A: Given,

Q: Two kids are racing towards a toy somewhere between them. Albert is to the West of the toy and Betty…

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Q: Traumatic brain injury such as concussion results when the head undergoes a very large acceleration.…

A:

Q: Traumatic brain injury such as concussion results when the head undergoes a very large acceleration.…

A:

Q: than 800 m/s2 lasting for any length of time will not cause injury, whereas an acceleration greater…

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Q: Light-rail passenger trains that provide transportation within and between cities speed up and slow…

A: Initial speed of the train = u = 6.0 m/sSpeed after 8 sec = v = 11 m/s To calculate The final speed…

Q: A jet fighter needs to be at the speed of 170mi/hr. What is the acceleration needed for the jet…

A:

Q: A speeder traveling at 1.51 m/spasses a motorcycle policeman at rest at the side of the road. The…

A: Write a given values of this question. v=1.51m/sa=0.91m/s2

Q: While driving south on hwy 400, Jim gets stuck travelling at 1.9 m/s behind a slow truck. He finally…

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Q: To deter speeding through a residential area, the Police set up a speed trap on Illusion Drive.…

A: Given Speed limit is v= 30 mph=13.41 m/s Distance is d=50 m

Q: Traumatic brain injury such as concussion results when the head undergoes a very large acceleration.…

A: Given: Initial velocity of child v0 = 0. Distance travelled by child d = 0.44 m. Distance travelled…

Q: A car accelerates from rest at 2.5 m/s2, travels with a constant velocity of 90 km/h and then…

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Q: How long did the ball take to return to the juggler’s hand?

A:

Q: A car is traveling at a steady 80 km/h in a 50 km/h zone. A police motorcycle takes off at the…

A: We have to determine the time elapses before the motorcycle is moving as fast as the car. We are…

Q: bserved his athletic friends, Aya and Marisa, run. The two girls ran in a 1.5-km straight dirt road.…

A: Given Data:-  The two girls ran on a 1.5-km straight dirt road.   Marisa was given a ten-second…

Q: 2. A motorcyclist and a runner are in a road race. The runner runs the entire 1500 meters at a speed…

A: Given data:  Total distance (d) = 1500 m Speed of runner(Vr) = 0.2 m/s Motorcyclist covers 1st 500m…

Q: A rocket-powered sled moves along a track, eventually reaching a top speed of 247 m/s to the west.…

A: This question is based on Motion in a straight line topic. We need to use equations of motion to…

Q: A car accelerates from 17 m/sm/s to 27 m/sm/s in 6.3 ss . What was its acceleration assuming it is…

A:

Q: You are driving along, when you see an obstacle in the road ahead.  You slam on your brakes and your…

A: Given data:  Acceleration is constant  Time (t) = 2.7 s Distance traveled (s) = 16.9 m Final…

Q: need during the remaining portion of the race, side-by-side with Sally?

A: In this question we will be first solving how long it takes to reach the finish line and then we…

Q: A motorcycle has a constant acceleration of 4.41 m/s2. Both the velocity and acceleration of the…

A: Given that,  The initial velocity of the motorcycle, vi=16.2 m/s The final velocity of the…

Q: Traumatic brain injury such as concussion results when the head undergoes a very large acceleration.…

A:

Q: A car is traveling along a straight road at a velocity of +38.1 m/s when its engine cuts out. For…

A: The kinematic equation for velocity:vf​=vi​+atWhere:vf is the final velocity,vi​ is the initial…

Q: At a stop light, a truck traveling at 15 m/s passes a car as it starts from rest. The truck travels…

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Q: Basam is standing on the edge of a cliff and tosses her physics book upward with a speed of 22.0…

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Q: A bus is traveling a constant 11.0 m/s.  It passes a sports car at rest which immediately begins to…

A: Initial speed, u = 0 Final speed, v = 11 m/s Acceleration, a = 4 m/s² Time taken, t =?

Q: Bob is cruising leisurely on his bike at 2.4 m/s when Jim passes him, traveling at a constant 10.2…

A:

Q: Traumatic brain injury such as concussion results when the head undergoes a very large acceleration.…

A: Given that, if the acceleration, a is less than 800 m/s2 lasting for any length of time will not…

Q: jet fighter needs to be at the speed of 170mi/hr. What is the acceleration needed for the jet…

A:

Q: Bob is cruising leisurely on his bike at 2 m/s when Jim passe immediately begins accelerating at 2.2…

A:

Q: Traumatic brain injury such as concussion results when the head undergoes a very large acceleration.…

A: Given, For Hardwood floor, where u is the initial velocity and v is the final velocity and child…

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 –