The winner of the 2016 Keystone (Colorado) Uphill/ Downhill mountain bike race finished in a total time of 47 minutes and 25 seconds. The uphill leg was 4.6 miles long, and on this leg his average speed was 8.75 mph. The downhill leg was 6.9 miles. What was his average speed on this leg?

Q: Bertie was able to drive 237 km in 2 hours and 30 minutes. The last 50.0 km was slowed due to…

A:

Q: The 1992 world speed record for a bicycle (human-powered vehicule) was set by Chris Huber. His time…

A: Time taken by Chris Huber in 1992 to cover 200 m stretch = 6.509 seconds Using formula, Speed×time =…

Q: Shown below is a graph of velocity versus time for a moving object. The object starts at position x…

A: Given Data:  Initial position of object x=0 m Final time t=2 s At t=2 s, velocity (v)= 10 ms

Q: A student estimates that his daily commute to college consists of 10 minutes driving at a speed of…

A: Given v(t) vs t graph:

Q: A group of college students eager to get to Florida on a spring break drove the 820-mi trip with…

A: Average speed is the ratio of the total distance covered  to the total time taken to cover the…

Q: For many years it was the dream of runners to break the “4-minute mile". Now, quite a few runners…

A:

Q: Starting from rest, a car accelerates at a constant rate of 5.2 m/s2 for a total of 5 seconds.…

A: The formula for distance travelled by car is, s=ut+12at2 Here, the initial velocity is u,…

Q: The average person passes out at an acceleration of 7g (that is, seven times the gravitational…

A:

Q: Ajogger begins her workout by jogging to the park, a distance of 30 miles. She then jogs home at the…

A: Distance for the trip to park is Distance for the return trip is Speed of the person remains same…

Q: Your grandfather had to walk to school uphill, both ways, but one way he went at 5.0 km/hr, and the…

A: Given: Speed of the walking to school from home  v1 = 5.0 km/hr  Speed of the walking to home from…

Q: As a train accelerates away from a station, it reaches a speed of 4.6 m/sm/s in 5.3 ss. If the…

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Q: A student drives the 105-mi trip back to campus after spring break and travels with an average speed…

A: Given: Total distance of the trip = 105-mi, Average speed for the first part of the trip, v1 = 56…

Q: When the legal speed limit for the New York Thruway was increased from 55 mi/h to 65 mi/h, how much…

A:

Q: A bicyclist starts a timed sprint race as he passes the starting line moving at 6.0 mi/h. His…

A: Given:Initial velocity of the bicyclist, u = 6 mi/hAverage velocity at constant acceleration = 21…

Q: An old commuter train travels a distance of 100 km from Union Station to Berkeley’s Crossing in the…

A: To determine,part ahow many hours does the trip take(t).given,speed(v)=45 mphdistance(d)=100…

Q: The average person passes out at an acceleration of 7g (that is, seven times the gravitational…

A: Given:  acceleration, a = 7 g = 7 x 9.8 = 68.6 m/s2 initial velocity, u = 0 m/s  final velocity, v =…

Q: On a highway trip, Joseph drives the first 25 miles at 55 mph, and the next 15 miles at 70 mph. What…

A:

Q: A motorcycle starts from rest with an acceleration of 5 m/s2 in the positive x direction for 2…

A: Given:- A motorcycle starts from rest. The acceleration of the motorcycle is a1 = 5 m/s2 it moves…

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

A: Given :  initial velocity u=0  final velocity v= 21m/s  time t= 7s

Q: A jogger leaves his house and runs two laps around his neighbourhood before returning home. Each lap…

A:

Q: Construction work in the city means you have to drive at a steady 23 km/h. Once past this zone, you…

A: Given value--- initial speed = 23 km/h. past this zone, you speed up to 56 km/h in 10 s. We have…

Q: A car slows from 48.4 kph to 34.9 kph to get off the highway in a span of 8.5 seconds. What is the…

A: Page 1

Q: Ilya and Anya each can run at a speed of 8.60 mph and walk at a speed of 3.70 mph. They set off…

A: in this question  we determine  mine total time for cover whole distance and velocity average.

Q: After driving at a steady speed for 30km, Mario reacher the expressway where he increased his speed…

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Q: Jason and Eddie are traveling from Atlanta to Miami which is a distance of 662 miles. It took them…

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Q: You plan on making a one-hour stop for lunch, and two 10-minute gas/rest stops along the way.  What…

A: The total time taken for the trip will be the sum of the time taken to cover the distance as per the…

Q: A drag racer crosses the finish line and the driver applies the brakes to slow down. The brakes are…

A: Given data: Initial speed of the car, u=12 m/s Initial time, t1=7 s Final speed, v=5 m/s Final time,…

Q: A cheetah can reach a top speed of 112kmh in about 3 seconds starting from rest. a herd of antelope…

A: The objective of this question is to determine whether the cheetah will be able to catch the…

Q: A car starts from rest and has an acceleration of 17 m/s2. (a)  What is its velocity after 11…

A: Given data: Initial velocity (v0) = 0 m/s Acceleration (a) = 17 m/s2 Time (t) = 11 s Required: Final…

Q: Two cars left Albany and Tenterden at the same time, passing through mount barker and both…

A: Given Two cars left Albany and Tenterden at the same time, passing through mount barker and both…

Q: Dennis hiked for about 4 hours and reached the top of the mountain. He traveled 36 meters in total…

A: Given data: Time = 4 hours Distance travelled = 36 m Speed: The ratio of the distance travelled to…

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 –