A jogger runs 10 km in 45 minutes, rests for 10 minutes, and then runs another 8 km in 1 hour. The average speed of the jogger over the entire run is

Q: The speed of a car increases from 20 m/s to 80 m/s during 3 seconds . The acceleration of the car…

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Q: A car starts from rest and accelerates uniformly to reach a speed of 21 m/s in 7.0 s. What was the…

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Q: If a seagull drops a shell from rest at a height of 14 m, how fast is the shell moving when it hits…

A: Seagull drops a shell from rest ,  means initial velocity ( u ) = 0 Drops from height ( h ) = 14 m…

Q: How much faster would someone reach their destination if they increased their average velocity from…

A: The final velocity, vf=60 mph The initial velocity, vi=50 mph The distance traveled, S=30 mile

Q: If a cart takes 4 s to move 3.8 m, how long will it take to move 12.8 m?

A: Given data:  Distance (d) = 3.8 m Time (t) = 4 s Required: Time taken by car to move 12.8 m

Q: An object travels 20 m in 2 s and then another 16 m in 2 s. What is the average speed of the object?

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Q: If a plane needs to go 250km/h to take off, and the most it can take is 30 seconds, how much does…

A: The plane needs to increase its speed from u=0 to v=250 km/h=69.44 m/s in a time period of t=30 s.…

Q: There were 2 boys standing on top of a bridge. The 1st boy drops a 1.5kg rock while the 2nd boy…

A: h=ut+0.5gt2

Q: A driver of a car hits its brakes and begins to decelerate. If the velocity changes from 60 m/s to…

A: Initial velocity u=60 msFinal velocity v=20 mstime t=6 secs

Q: A car travels 510 km in 12 hours. What is the average speed of the car in km/h?

A: Introduction :  In this question we are provided it value of time and distance . With these data we…

Q: If a car increases in velocity from +5 m/s to +15 m/s in three seconds, what is its acceleration?

A: Given value--- initial velocity = 5 m/sec. final velocity = 15 m/sec. time t = 3 second. We have…

Q: After completing a journey of 84 km. A cyclist noticed that he would take 5 hours at least. if he…

A: Let the speed of cyclist be v Distance cyclist travelled d= 84 km Cyclist take time t= 5 hours If it…

Q: A downhill skier accelerates from 20 m/s to 40 m/s in 4.5 seconds. What is their acceleration?

A: Using kinematic equation, the expression for find acceleration is v=u+ata=v-ut

Q: A taxi moving at 36 kph speeds up uniformly to a velocity of 30.0 m/s in a time of 5.0 seconds. What…

A: Given : vo = 36 kph = 36(1000/3600) = 10 m/s v = 30 m/s t = 5 s

Q: What is the acceleration of a person who goes from 4.3 m/s to rest in 2 seconds?

A: given: initial velocity u = 4.3 m/s final velocity v =0 m/s time = 2 sec

Q: If you could jump with an initial speed at 5 m/a, how many jumps would you need to reach the top of…

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Q: A car is going 90 km/HR at a constant speed. How far will he travel in 3 hours?

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Q: An object, starting from rest, is given an acceleration of 16 feet per second? for 3 seconds. What…

A: Given, Accleration a  =16 ft/s  Time t = 3 sec   We know the expression for first equation of…

Q: A tortoise moves a distance of 102 metres in 0.26 seconds what is the average speed of tortoise in…

A: Given data :- distance d = 102 m time t = 0.26 s

Q: The speed of the car is decreased uniformly from 30 m/s to 10 m/s in 4.0 seconds. What is its…

A: Given that, Initial speed of the car, u = 30 m/s Final speed of the car, v = 10 m/s Time, t = 4 s We…

Q: A truck increases its speed uniformly from 15 m/s to 25 m/s over a distance of 300 m. The…

A: Using 3rd kinematic equation: V^2 = U^2 + 2*a*d U = Initial speed of truck = 15 m/s V = final speed…

Q: Dimetrodon treks at 1.9 m/s. How long would it take to walk 2.5 km? #12 Sig Figs

A: Given data-      Dimetrodon speed (u)= 1.9 m/s     distance travelled (d) = 2500 meter Explanation…

Q: A car, initially traveling at 8 miles per hour, comes to rest in 7.5 s. What was its acceleration in…

A: Given: The initial speed of the car is 8 mi/h. The final speed of the car is 0 mi/h. The time…

Q: A tortoise moves a distance of 92 m in 2.4 seconds what is the average speed of tortoise in km/h?

A: Introduction :  In this question we are provided with value of  total time taken and total…

Q: A car is making a 12-mile trip. It travels the first 6.0 miles in 12 minutes and the last 6.0 miles…

A: Expression for speed v1=d1t1=6.0 mil12 min=0.5 milmin v2=d2t2=6.0 mil6 min=1 milmin

Q: A 36.5 kg child on a sled slides down a hill, reaching a speed of 9.8 m/s. How high was the hill (in…

A: The speed at the bottom of the hill,

Q: A mountain incline climbs from an elevation of 6556 feet to 8587 feet above sea level. The…

A: Initial elevation (h) = 6556 feet Final elevation (h') = 8587 feet Time taken (t) = 18 minutes and…

Q: A shoe was dropped from a building and passes the third floor in 0.411 seconds. If each floor of the…

A: Solution: given that t = 0.411 m h = 4.5 m each

Q: Without turning around a dog walks along a long straight path for 4.0m at 3.0m/s and then for 2.0s…

A: The average speed is defined as the total distance traveled by an object divided by the total time…

Q: What is the average speed in km/h of a car that travels 772 km in 5.8 h?

A: The average speed can be determined by formula    v=distance /time    v=772 km/5.8 h    v= 133.1…

Q: A boy travels with a speed of 10 ms

A: Given Speed of boy=10 ms-1Time Taken=30 min

Q: If a rock of mass 6kg is dropped from a height, and has a velocity of 5 m/s when it hits the ground,…

A: The kinetic energy of the rock just before it hits the ground will be KE=12mv2=126kg5m/s2=75J

Q: If a deer runs 4 miles in 7 minutes. It's average speed is?

A:

Q: What is the acceleration of a car that moves from a speed of 2.5 m/s to a speed of 25 m/s during a…

A: Acceleration of the body is the change in velocity over the change in time. a = ∆v/∆t  where, a =…

Q: A boy runs at a speed of 8 metres per second. How long does he take to cover a distance of 1 km?

A: We know that  1km=1000m

Q: The average speed of a car is 35 km h-. How far can it travel.in 45 minutes?

A: Given average speed V =35kmh And time t= 45 minutes We have to find the distance travelled by the…

Q: An airplane flies eastward at a constant speed, travels 300 km in 2 hours. what is the average…

A: Given data: Distance travelled by the airplane, d=300 km Time taken, t=2 h

Q: What is the speed of a bird if it flies 30 miles within 5 hours.

A: Speed Speed is defined as the rate of change of position of an object in any direction. It is…

Q: The average speed

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Q: A plane took 3 hours 33 min to finish a journey.If the distance of the journey was 2840 miles,at…

A: The given data are: t=3hr33min=231 min=13860 sd=2840 miles=4570537 m Here, t denotes the time and d…

Q: The zombie then flies backward with an initial velocity of 30 m/s and slides to a stop on the…

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Q: When the driver applies the brakes of a light truck traveling 10 km/h, it skids 3 m before stopping.…

A: GIVEN THAT FOR FIRST CASE , u =10Km/h⇒U=10×518=5018=2.78m/s , AND S=3 m FOR THE SECOND CASE u=…

Q: A car travels 340 km in 8 hours. What is the average speed of the car in km/h?

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Q: A car travels 430 km in 10 hours. What is the average speed of the car in km/h?

A: Introduction :  In this question we are provided with value of time and distance . With these data…

Q: A car goes 260 miles in 27 hrs. What is the average speed in miles per hour?

A: Given ,          distance = 260 miles           time = 27 hrs

Q: A man has a pace factor of 0.65/pace. If a distance on the ground was measured to be 45.50m, it…

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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 –