An olympic gold medalist from Moscow runs one time around the 400-meter track in 40 seconds. What is her average speed?

Q: Is it possible to have an accelerated motion with a constant speed? Name such type of motion?

A: Yes, it is possible to have an accelerated motion with a constant speed.

Q: A car moves with a speed of 25 m/s. What distance will it travel in a time of 1 hour:

A: distance = speed x time

Q: If Cathy and Myra take 2.0 h to walk from their house to their school at a rate of 1.0m/s, how far…

A: Time taken by Myra and Cathy to reach school; t = 2.0 h = 2 x 60 x 60 s = 7200 s Speed of Myra and…

Q: A driver in a car slows down when he sees a deer ahead. He slows down at a rate of -5.6m/s^2 for 4…

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Q: A car traveling at 3.0 m/s has a constant acceleration of 4.0 m/s in the same direction as the…

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Q: If Seneca decides to walk across town to a store that is 85 kilometers away and she has only 30…

A: Given data :             Distance = d              Time  = t       To find  :               Speed

Q: If Seneca decides to walk across town to a store that is .95 kilometers away and she has only 25…

A: Given data :            Time = t            Distance = d                To find :…

Q: A spacecraft has an acceleration of 5g. What  distance is  needed for it to attain the speed of…

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Q: A light plane must reach a speed of 31 m/s for takeoff. How long a runway is needed if the…

A: Given information:Final required speed (v) = 31 m/sAcceleration of the plane (a) = 3.2 m/s2Initial…

Q: What is the meaning of instantaneous velocity?

A: instantaneous velocity

Q: Find a) the distance travelled after 5sec. b) the velocity after this time.

A:

Q: What is the final velocity of Lukas if he accelerated constantly by 2.1 m/s2 from an initial…

A:

Q: What is the  Instantaneous Speed?

A: Variation of distance with respect to variation in time at any instant is known as instantaneous…

Q: What is the velocity of a penguin that swims 90 meters through the water in 12 minutes?

A: Solution:  Use the formula for velocity:  V = distance/time  Now,

Q: A light plane must reach a speed of 33 m/s for takeoff. How long a runway is needed if the…

A: Given: final speed of plane before takeoff v = 33 m/s constant acceleration  a = 3.2 m/s2

Q: What is the instantaneous velocity of the hummingbird at t = 1 s?

A: Instantaneous velocity is the velocity at a given moment and will be equal to the slope of the…

Q: Surprisingly, very few athletes can jump more than 2 feet (0.6 m) straight up. Use d = 1/2gt2 and…

A: The time that the athlete spends in moving upwards is,

Q: An olympic gold medalist from Australia runs one time around the 400-meter track in 35 seconds. What…

A:

Q: If a ball is released from a window ledge, how fast will it be travelling when it reaches the…

A: Given,Height of the window from the ground, H = 69 mFind:velocity of ball at time it reach ground. v

Q: Mr. Mangan picks up a rock and throws it at a third zombie, hitting it squarely between the eyes. If…

A:

Q: An Olympic-class sprinter starts a race from rest with an acceleration of 3.7 m/s^2. What is her…

A: Given,  u = 0 m/s (initially at rest)  a = 3.7 m/s2 (acceleration)  t = 1.7 s  As we know, from…

Q: A student accidentally dropped her pen from the second floor of the school building which is 5 m…

A:

Q: What is the displacement of a runner who goes on a 5 kilometer run and ends at their starting…

A: Given :- runner goes on a 5 kilometer run and ends at their starting point .

Q: A sprinter accelerates at the beginning of a 100-meter race and then tries to maintain a maximum…

A:

Q: Are officers in the highway patrol more interested in (a) your average speed or (b) your…

A: Average or instantaneous speed

Q: A body starts from rest, moves in a straight line with constant acceleration and covers a distance…

A: Given that, Initial velocity = 0 Total distance = 7 km = 7000 m Total time = 15 min = 900 s

Q: A car falls from a height of 25 m. How fast does it go to the bottom??

A: The kinematic equation involving the final speed (v), initial speed (u), acceleration (a) and the…

Q: A car moves uphill at 40 km/h and then back downhill at 60 km/h.What is the average speed for the…

A:

Q: A car travels a distance of 100 km in 2.00 hours. It then travels an additional distance of 60.0 km…

A: Given data:  Distance (d1) = 100 km Time (t) = 2.00 h Additional distance (d2) = 60.0 km Time (t) =…

Q: An Olympic gold medalist from Australia runs one time around the 400 meter track in 40 seconds.…

A: Given data: Length of track = 400 m Gold medalist completes one round along the track Time (t) = 40…

Q: A student drops a ball from a window 3.5 m above the sidewalk. How fast is it moving when it hits…

A: Given Data : The height of the window is given as s = 3.5 m.

Q: What is the relationship of the speed as a function of time?

A: The graph is taken X-axis in time (hrs) and Y-axis as speed (ft/hr)

Q: Nerve impulses in the human body travel the speed of about 100 M Dash S. A 1.6 M tall man…

A: Given that,  speed = 100 m/sHeight of tall man = 1.6 mWe know that,distance = velocity x timeSo,…

Q: A rock is dropped off a tall, vertical cliff on the planet Mars. How long would it take to reach 85…

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Q: Celeste won a​ 100-meter race with a time of 11.6​seconds, and Michelle came in second with a time…

A: Given:-  The distance both has to race is d = 100 m  The time celeste take is t1= 11.6 sec and the…

Q: during

A: When the speed of a body is calculated at a particular instant of time it is called instantaneous…

Q: Calculate the average speed of Charlie, who runs 200m to the store in 80 seconds.

A: Given data: Distance covered by Charlie is, d=200 m. Time taken to cover the distance is, t=80 s.

Q: A bicyclist rides with a constant speed of 9m/s for 4s. Make a motion chart (from initial position)…

A: Given data: Speed of the bicyclist, v=9 m/s Time taken, t=4.0 s

Q: A person drives 120km [N32W] in a car to his friend's place to visit. He then drives 150km [W24N] to…

A: Given, Time= 2.5 hours D1= 120 km D2= 150 km

Q: In a swimming race, Briana swam 50 meters in 40 seconds.  What is her average speed?

A: The given data are: d=50 mt=40 s Here, d denotes the distance and t denotes the time.

Q: A motor car moving with a uniform acceleration of 2 m/s and its initial velocity is 10 m/s.The…

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Q: Are members of the highway patrol interested in a. Your average speed b. Your instantaneous speed as…

A: The members of highway patrol have a key responsibility to check whether the vehicles moving on the…

Q: You are told to drive half a trip at 20 m/s and the other half of the trip at 30 m/s.   It is not…

A:

Q: Billy drops a watermelon from the top of a three-story building, 10 m above the sidewalk. How fast…

A:

Q: Speed of a train is 20 meters per second. It can cross a pole in 10 seconds. What is the length of…

A:

Q: a ball is thrown straight down from at 12 m/s toward the ground from a height of 45 m how fast is…

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Q: What will be the total time to cover 3600 m at 2 meter per seconds?

A: Given value--- Distance = 3600 m. speed = 2 m/s. We have to find--- time ?