A train in Europe has an initial velocity of +50.0 m/s. a) If while braking, the train underwent an acceleration of -2.00 m/s2 for 20.0 s, what was the train’s braking distance? b) What was the train’s velocity after the acceleration?

Q: a bicycle starts its motion from rest and uniformly accelerates at a rate  of 7 m/s2 for 7.2 seconds…

A:

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

A:

Q: A cyclist cycles 50.0 km [N] and then 30.0 km [E]. The total time taken for the trip is 1.00 h. What…

A:

Q: A parked police car takes off after a suspect and reaches 61.6 km/h in 7.94 seconds.  What was the…

A: Initial velocity= 0 m/s Final velocity= 61.6 km/h Time taken to achieve this velocity= 7.94 sec

Q: A truck accelerates from rest at a checkpoint to a speed of 10 m/s with an acceleration of 2m/s^2.…

A: The given data are: u=0 m/sv=10 m/sa1=2 m/s2a2=-1.5 m/s2 Here, u denotes the initial speed, v…

Q: A rock is thrown straight up with an initial velocity of 17.6 m/s. What time interval elapses…

A: Write the given values with the suitable variables. u=17.6 m/ss=0 mg=9.8 m/s2 Here, u, s, and g are…

Q: Starting from rest, a particle moves along a straight line with an acceleration of 4.0 m / s2. after…

A: Given : initial velocity of particle, u = 0 ( starting from the rest )             Acceleration of…

Q: Albert is riding his scooter at a velocity of 52 km⁄ℎ? when he sees an old woman crossing the road…

A: Given : vo = 52 km/h = 52(1000/3600) = 14.44 m/s x = 30 m v = 0 (because finally the scooter stops)…

Q: A person takes a trip, driving with a constant speed of 91.0 km/h except for a 22.0 min rest stop.…

A: The average speed is given by,  vavg=Total distancetotal time     =v1t1+v2t2t1+t2 Given : The person…

Q: If you were to drop a rock from a tall building, assuming that it had not yet hit the ground, and…

A: It is given that,

Q: A certain freely falling object requires 1.40 s to travel the last 36.5 m before it hits the ground.…

A: Given The distance traveled in 1.40 s is So = 36.5 m. The time is taken by the object to cover So…

Q: A car starts from rest then it moves with a constant acceleration of 3m/s² for 10 secs. It then…

A:

Q: A drag racer accelerates at 13.2 m/s^2 for a distance of 298.2 m. The driver crosses the finish line…

A: Given data The acceleration of the racer is a = 13.2 m/s2. The distance traveled by the racer is s =…

Q: A car slows down (or speeds up) from a speed of 29 m/s to a speed of 48.9 m/s over a distance of 732…

A: If a car speeds up then it means it's accelerating and a is positive.  If a car is slowing down then…

Q: An electric vehicle starts from rest and accelerates at a rate of 3.0 m/s2 in a straight line until…

A:

Q: A person takes a trip, driving with a constant speed of 91.0 km/h except for a 22.0 min rest stop.…

A:

Q: A car moving initially at 55 km/h[S] experiences an acceleration of 10 km/h/s[S] for 4.8 s. What is…

A: Given data: Initial velocity (V0) = 55 km/h [S] Acceleration (a) = 10 km/h/s [S] Time (t) = 4.8 s…

Q: An airplane increases its speed at the average rate of 10.0 m/s^2. How much time does it take to…

A:

Q: A runner makes one lap around a 200 m track in 25 seconds. What were the runner’s average speed and…

A: From the question it is given that:  Distance traveled to make one lap: s = 200 m Time taken to…

Q: An airplane, starting from rest, moves down the runway at constant acceleration for 18 s and then…

A:

Q: A train is travelling down a straight track at 20 m/s when the engineer applies the brakes,…

A:

Q: At a track meet, a runner runs the 100–m dash in 19 s. What was the runner's average speed? =______…

A: Given data The distance covered is d=100 m The time is t=19 s   The runner's average speed is  SR=dt

Q: An aircraft landing on an aircraft carrier is brought to a complete stop from an initial velocity of…

A: Given data :  Initial velocity of aircraft = 0 m/s  Final velocity of aircraft= 215 km/h  Time taken…

Q: The rocket sled starts from rest and accelerates at a = 30 + 2t m/s² until its velocity is 400 m/s.…

A: Given:-  The rocket sled starts from rest and accelerates at a = 30+2t m/s2 the rocket move with…

Q: The car then slows to 63 ft/s (43 mi/h) in 3.5 s. What is the average acceleration for this time…

A: GIven, Velocity of car v =63 ft/s Time taken t = 3.5 s

Q: An object is moving with a constant acceleration in a straight line from Point A to Point B. The…

A: Given, distance     s = 58 m  Time taken  t = 5.98s Final velocity  v = 11.96 m/s

Q: A cargo ship makes a short run between two docks: one in Mock Town. The other is in Logue Town. As…

A: Given data :                   Initial speed (u) = 7.4m/s                   Final speed (v) = 0 m/s…

Q: A brick is dropped from the roof of a tall building. After it has been falling for a few seconds, it…

A:

Q: Bobby walks north to a convenient store which is 48 m from his house once there he realize he forgot…

A: Given  Total time taken "t" = 25 min  Total distance "d "=  48 + 48m…

Q: A car's manual states that the vehicle can brake at an initial speed of 100 km/hr with a maximum…

A: Write the equation of motion

Q: A motorcycle with an initial velocity 6.0m/s east accelerates at 4.0m/s² east. How long will it take…

A: Given data:  Initial velocity (v0 ) = 6.0 m/s, due East Acceleration (a) = 4.0 m/s2, due East Final…

Q: A researcher observes a vehicle with an initial velocity of 14 m/s. The vehicle accelerates…

A: Given: Initial Velocity ( u ) = 14 m/s Acceleration ( a ) = 3 m/s2  Time ( t ) = 6 seconds To Find ;…

Q: An airplane starts its takeoff by moving at 2.6 m/s. The plane must then accelerate at 3.0 m/s2 for…

A: Initial speed of the plane (u) = 2.6 m/s Acceleration of the plane (a) = 3 m/s2 Time (t) = 30 s Need…

Q: From a helicopter that is suspended in the air, a military man falls freely by 119.17 m and at that…

A: Recall vf=vi+atandy=1/2gt2 when vi=0

Q: An “Airbus A380” commercial airplane has a take-off acceleration of 1m / s² if it starts from rest…

A:

Q: An object is dropped from rest and impacts the ground with a velocity of 9.8 m/s (downwards). How…

A: u=0v=9.8 m/sg=9.8 m/s2

Q: A car is moving with a constant acceleration of 2 m/s 2 . If the initial velocity of the car is 5…

A: Given: Initial velocity, u=5 m/s Acceleration, a=2 m/s2. Time, t=8.0 s Required: Final velocity,…

Q: The average acceleration of a moving car is 12 m/s^2. If the car moves from with an initial velocity…

A: Hi. as you have posted multiple questions and have not specified which question needs to be solved,…

Q: A train travelling at 20 m s accelerates at 0.5 m s2 for 30 s. How far will it travel in this time ?

A: Given data :                Initial velocity =  u                Time  =  t…

Q: A car traveling in a straight line with an initial velocity of 34 m/s accelerates at a rate of 2.0…

A: First find the time taken to increase the velocity from 34 ms to 58 ms t=v-ua=58 ms-34 ms2.0 ms2=12…

Q: The average acceleration of a moving car is 25m/s^2. If the object starts in 10.0 m/s initial…

A:

Q: A particle is initially traveling east at 5 m/s , then it begins to have an acceleration of 10 m/s2…

A:

Q: A cheetah can accelerate from rest to a speed of 25.5 m/s in 5.00 s. What is its acceleration (in…

A: Given , Initial speed of cheetah (u) = 0m/s Final speed of cheetah (v) = 25.5m/s Time taken (t) = 5…

Q: A train moves along a straight track with acceleration - 3 m/s². If the initial velocity of the…

A: Given :      acceleration, a = t10 - 3 m/s2      Initial velocity, u = 45 m/s      Time, t = 1 min =…

Q: A family road trip starts out in a van travelling 50km at a velocity of 75km/ hr followed by a spot…

A: Here the van travelling 50km at a velocity of 75km/ hr followed by a spot of slow traffic where they…

Q: A motorcycle accelerates at a constant acceleration of 3.0 m/s^2. starting from rest, what is its…

A: Given  Initial velocity u=0m/s Acceleration a=3m/s2 Time t=2s

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 –