Speed

Q.

A train travels between two stations A and B. While going from A to B, its average speed is 60 km/h, and when coming back from B to A, its average speed is 90 km/h. Find the average speed of the train during the whole journey. [4 MARKS]

Q.

A bus travels at ${}^{\prime }{v}^{\prime }km$ per $hour.$ It is going from Daspur to Beespur. After the bus has traveled $5$ hours, Beespur is still $20km$ away. What is the distance from Daspur to Beespur? Express it using ${}^{\prime }{v}^{\prime }.$

Q. A train travels 700 meters in 35 seconds. What is its speed in km $h^{-1}$ ?

Q. A car is moving at a constant speed covers a distance of 120 km in 2 hours. Find the time taken by the car to cover a distance of Rs 540 km at the same speed.

Q. A train covers 51 km in 3 hours. Calculate its speed. How far does the train go in 30 minutes?

Q.

If a body travels with speeds v₁, v_2, and v₃ for equal intervals of time, find the average speed.

Q.

A train whose length is 200 m, is running at a speed of 72 km/h. How long will it take to cross a railway signal?

1. 5 s

2. 20 s

3. 10 s

4. 15 s

Q. If the speed of a car is $20m{s}^{-1}$, what is the speed in $km{h}^{-1}$?

1. 72

Q.

The train is moving at a uniform speed of 80 km/h. How far will it go in 15 minutes?

1. 33.33 km

2. 13.33 km

3. 43.33 km

4. 23.33 km

Q. A motorist travelled the distance between two towns, which is 65 km, in 2 hours and 10 minutes.
Find his speed in meters per minute.

Q. A racing car covered 600 km in 3 hours 20 minutes. Find its speed in meter per second.
How much distance will the car cover in 50 sec?

Q. If a loaded truck travels 18km in 25 minutes how much distance will it travel in 5 hours ? Answer should be 216 km

Q. The distance (in km) travelled in h hours at a constant speed of 40 km per hour is

1. 20 h km
2. 40 - h km
3. 40 + h km
4. 40h km

Q.

When the speed is kept fixed, time and distance vary inversely with each other. State whether the statement is true (T) or false (F).

1. True
2. False

Q.

Distances travelled by Delhi-Patna Rajdhani express and Garib rath express in an hour are $120km$and $100km$ respectively. Find the ratio of their speed.

Q. After walking 20km towards North Ram starts walking towards South and walks 45km. How far is Ram now from the starting point? What is the total distance travelled by Ram?

Q. Identify the correct S.I units for the given quantities .

1. Speed: $mh{r}^{-1}$
   Time: $hr$
2. Speed: $kmh{r}^{-1}$
   Time: $hr$
3. Speed: $kmmi{n}^{-1}$
   Time: $min$
4. Speed: $mse{c}^{-1}$
   Time: $sec$

Q. A cat runs 3 feet in 1 second while a rat runs 5 feet in 2 seconds. Which animal is faster?

1. Cat
2. Rat
3. Both run at the same speed.

Q. A train is moving with a speed of 80 miles per hour for the first 4 hours and 110 miles per hour for the next 3 hours. Find the average speed of the train using the average speed formula.

Q. The average speed of a scooter is qkm/hr.Ayoung man leaves Delhi for Agra at 1:15pm.He reaches a point from where Agra is still 60km away and the time is 4:15pm.Express the distance between Delhi and Agra in terms of q

Q. Sophia is travelling at 30 mph in her car. After 2 hours, she would have travelled 90 miles.

1. True
2. False

Q. John and Joy cover a certain distance between their office and home. John covers $30$ km in $3$ hrs and Joy covers $25$ km in $5$ hrs. Who has the highest speed?

1. Both of them have the same speed.
2. John
3. Joy
4. None of the above

Q.

Three dance lessons lasted for 2 hours and 30 minutes altogether. Each dance lesson took an equal amount of time. How long was each dance lesson?

1. 40 min.

2. 30 min.

3. 50 min.

4. 45 min.

Q. A train running at 25 km/hr takes 18 seconds to pass a platform.Next, it takes 12 seconds to pass a man walking at 5 km/hr in the opposite direction. Find the sum of the length of the train and that of the platform?.

1. 135 m
2. 145 m
3. 155 m
4. 125 m

Q. A car cover dsitance of $180km$ in $5$ hours.
How much distance will the car cover in $3$ hours with the same speed ?

Q. Shubham covers a distance at a speed of 50 km/h in 4 hours. How long will it take for him to cover the same distance if he travels at a speed of 80 km/h?

1. 100 minutes
2. 80 minutes
3. 150 minutes
4. 120 minutes

Q. Distances travelled by Hamid and Akhtar in an hour are 9 km and 12 km. Find the ratio of the speed of Hamid to the speed of Akhtar.

Q. Which of these units of distance is largest?

1. Yard
2. Mile
3. Foot
4. kilometre

Q.

If Raju covers a distance of 12 km in 3 hours then find distance that Raju travels in 10 hours

1. can't be found

2. 20 km

3. 40 km

4. 60 km

Q.

A bus travelling at $42km/h$ covers a distance in $5hours$. How much time would it save if it increased its speed by $8km/h$.