Explain why if a runner completes a 6.2-mi (10-km) race in 32 min, then he must have been running at exactly 11 mi>hr at least twice in the race. Assume the runner’s speed at the finish line is zero.

Q: A rocket is 4 miles above the earth in 10 minutes and 8 miles above the earth in 15 minutes What is…

A: Given: A rocket is 4 miles above the earth in 10 minutes and 8 miles above the earth in 15 minutes.

Q: Suppose you drive for 60 miles at 60 miles per hour, then for 60 miles at 30miles per hour. In miles…

A: Recall the equation connecting the three variables of speed, distance and time as: time = distance /…

Q: A rabbit is traveling at a pace of 250 meters per hour. How fast is the rabbit  traveling in…

A: Given:    Distance = 250 meter per hour

Q: A ball is thrown straight down from the top of a 220-footbuildingwith an initial velocity of −22…

A: Use the position function, s(t)=-16t2+v0t+s0 and substitute v0 and s0 with -22 and 220,…

Q: A child who is 4 feet tall walks at a speed of 3 feet per second away from a lamp post that is 20…

A: Given that the child is 4 feet tall and he walks at speed of 3 feet per second from lamp post of 20…

Q: Find how long it takes a person to drive 135 miles on I-­10 ifshe merges onto I­-10 at 10 a.m. and…

A: Given data: The distance is given as 135 miles. The speed is given as 60 mph. The objective is to…

Q: Suppose a trip from the dormitory to the late at 30 mph takes 12 minutes longer than the return trip…

A: Please refer the attached image for complete solution. THANK YOU.

Q: Speed is defined as the distance traveled per unit of time. Lee Shin drove 5 hours in the morning…

A: Total distance travelled in trip=430 km Total time taken to complete the trip=8 hours Let speed by…

Q: If You Can Run “The 600 Yard Run” In 1 Minute, 40 Seconds, How Fast Is That In Miles Per Hour?

A: Given The 600 Yard Run” In 1 Minute, 40 Seconds

Q: Two cyclists, 108 miles apart, start riding toward each other at the same time. One cycles 2 times…

A:

Q: Use the position function s(t) = −16t 2 + v0 t + s0 for free-falling objects.

A: The position function is given. Using this the velocity function is determined by taking its first…

Q: A 170­pound person uses 5.3 calories per minute when bicycling at a speed of 5.5 mph. How long must…

A: Given, A 170 ­pound person uses 5.3 calories per minute when bicycling at a speed of 5.5 mph. To…

Q: If you travel one mile in 59 seconds, what is your approximate average speed? What is your exact…

A: Since, it is given that if we travel one mile in 59 seconds, then our aimis to tell the average…

Q: A cyclist covers his first five km. at an average speed of 10 km. p.h., another km. at 8 km. p.h.…

A:

Q: A family was taking a trip of 225 miles. On the way home, they were able to drive 5mph faster and…

A:

Q: - An object travels 8 miles in 20 minutes at a constant speed. What is the obiect's speed in miles…

A: Object travels 8 miles in 20 mins 20 mins = 20/60 hrs = 1/3 hrs Then speed = dist / time

Q: A 747 jet needs to attain a speed of 180 mph to take off. It can accelerate from 0 to 180 mph in 12…

A:

Q: Suppose a car is going 31 miles per hour and slams on the break and decelerates at 13 feet per…

A:

Q: The GPS in my car indicates that Have 100. min left until I reach my destination. What is this…

A:

Q: For a set amount of time, the distance Kirk can run is directly related to his average speed. If…

A:

Q: Toronto’s Pearson International Airport has a high-speed version of a moving walkway. If Liam walks…

A: Consider the given information. Liam walks at a normal rate of 1.5 meters per second. Let the…

Q: A motorboat maintained a constant speed of 15 miles per hour relative to the water in going 10 miles…

A: let x=speed of current15-x=speed of boat upstream15+x=speed of boat downstreamtravel…

Q: A basketball is dropped from 30 feet. Each time it hits the ground, it rebounds 45% of its previous…

A: S=a+ar+ar^2.............  =a/(1-r)

Q: If a person ran a 26.2 mile race in 2 hours and 15.4167 minutes, how fast was she going in mph?

A: Given: The distance of the race =26.2 mile Therefore the distance covered by the person  is…

Q: The surface area of a cube is increasing at a rate of 349.9 cm/s. At what rate is the side length of…

A: We have to find the rate of change in side

Q: A van starts off 152 miles directly north from the city of Springfield. It travels due east at a…

A: The distance between the van and the city of Springfield is 152 miles in the north direction. The…

Q: A space ship travels at 25 miles per hour and traveled continuously for 211 hours. Enter the answer,…

A: We have to find out how many miles the space ship travelled.

Q: One speed skater starts across a frozen lake at an average speed of 9 m/s. Ten seconds later, a…

A:

Q: A cyclist pedals from his house to his college at a speed of 10 km.p.h and back from the college to…

A: Answer: Using the given data,

Q: At a given average speed, the distance traveled by a vehicle varies directly as the time. If a…

A:

Q: A fence 20 feet tall runs parallel to a tall building at a distance of 5 f diagram

A: Given, a fence 20 feet tall runs parallel to a tall building at a distance of 5 it from the building…

Q: One end of a ladder 25 feet long slides down a vertical wall while the other end moves away from the…

A:

Q: A cheetah can travel 60 km in 30 minutes. What is the average speed of a cheetah?

A: The average speed formula is: total distancetotal time

Q: The London Eye is a Ferris wheel in London, England, that travels at a speed of 0.26 meter per…

A:

Q: At Romar's garden, a sunflower was 14 centimeters tall when it was first planted, and continued to…

A: Given: At Romar's garden, a sunflower was 14 centimeters tall when it was first planted, and…

Q: To get to work, Santa jogs 3 km to the train and then rides the remaining 5 km. If the train goes 40…

A: Topic:- time and Speed

Q: While traveling to the office, Dolly drives her car at a speed of 60 kmph and then suddenly the car…

A: This is a question of kinetics, mathematical physics, and the application of Differential calculus.

Q: As Nancy walks away from a 700 cm lamppost, the tip of her shadow moves 40% faster than she does.…

A: Height of lamppost = 700 cm Tip of her shadow moves 40% faster than she does.

Q: During the first part of a trip, a canoeist covered 70 km at a certain speed. He then traveled 30 km…

A:

Q: If a train travels 372 miles In 4 hours with a constant speed, how far did the train travel in one…

A: The Formula for velocity is  Velocity(speed):- (Distance)/(Time) Here Train travels 372 miles which…

Q: the average monthly bill for wireless subscribers from 1985 to 2008 can be modeled by…

A:

Q: A pharmacist estimates that a chemotherapy drug produces a 75% improvement in lung cancer patients.…

A: Solution

Q: Find the distance traveled in 15 seconds by an object traveling at a constant velocity of 20 feet…

A:

Q: An airplane travels 1950 km against the wind in 3 hours and 2340 km with the wind in the same amount…

A: Given Data: The distance covered by the aeroplane while travelling against the wind is: d1=1950 km…

Q: } One leg of a right triangle is increasing at a rate of 2 inches per second while the otner stays…

A:

Q: A cattle train left Miami and traveled toward New York . 14 hours later a diesel train left…

A: A cattle train left Miami and traveled toward New York . 14 hours later a diesel train left…

Q: One end of a ladder 34 feet long slides down a vertical wall while the other end moves away from the…

A: Note:  According to our guidelines we are supposed to do only first question. Kindly repost other…