# Speed (Average Speed)

## Trending Questions

**Q.**

**Question 10**

A car moves with a speed of 40 km/h for 15 minutes and then with a speed of 60 km/h for the next 15 minutes. The total distance covered by the car is:

(i) 100 km

(ii) 25 km

(iii) 15 km

(iv) 10 km

**Q.**

The odometer of a car reads 57321.0 km when the clock shows the time 08:30 AM. What is the distance moved by the car, if at 08:50 AM, the odometer reading has changed to 57336.0 km? Calculate the speed of the car in km/min during this time. Express the speed in km/h also.

**Q.**

the speed of the moving car is 72 km/hr . calculate in m/s.

**Q.**

Question 4

A bus travels 54 km in 90 minutes. The speed of the bus is

(a) 0.6 m/s

(b) 10 m/s

(c) 5.4 m/s

(d) 3.6 m/s

**Q.**

Question 15

A spaceship travels 36, 000 km in one hour. Express its speed in km/s

**Q.**

A car travels a distance of 15 km in 20 minutes find the speed of the car in kilometre per hour and metre per second

**Q.**

Question 5

If we denote speed by S, distance by D and time by T, the relationship between these quantities is

(a) S=DT

(b) T=SD

(c) S=1T×D

(d) S=TD

**Q.**A car moving on a straight road is an example of

- rectilinear motion
- oscillatory motion
- rotatory motion
- periodic motion

**Q.**

Question 8

Which of the following relations is correct?

- Speed = Distance ∗ Time
- Speed= DistanceTime
- Speed= TimeDistance
- Speed = 1Speed ∗ Time

**Q.**

Rohan covers a distance of 10 km by running with a uniform speed of 4.5 km/hr. Sohan runs 1.2 km in 15 minutes. Who runs faster?

**Q.**

Without actually calculating the cubes, find the value of each of the following: ${\left(28\right)}^{3}+{(-15)}^{3}+{(-13)}^{3}.$

**Q.**

Without actually calculating the cubes, find the value of the following:

${\left(28\right)}^{3}+{(-15)}^{3}+{(-13)}^{3}$

**Q.**

Question 19

Distance between Bholu’s and Golu’s house is 9 km. Bholu has to attend Golu’s birthday party at 7 o’clock. He started from his home at 6 o’clock on his bicycle and covered a distance of 6 km in 40 minutes. At that point he met Chintu and he spoke to him for 5 minutes and reached Golu’s birthday party at 7 o’clock. With what speed did he cover the second part of the journey? Calculate his average speed for the entire journey.

**Q.**

A space ship travells 36000 km/hr. Express its speed in km/s.

**Q.**

A girl decides to go for shopping. The mall is 5 km from her home. She covers the first 3 km at a speed of 30 km/hr. She is stuck in traffic for 6 minutes and covers rest of the distance at 40 km/hr. How much time did she take to reach the mall? Also, find her average speed. [5 MARKS]

**Q.**

Question 11

Suppose the two photographs, shown in Fig. 1 and Fig. 2, had been taken at an interval of 10 seconds. If a distance of 100 meters is shown by 1 cm in these photographs, calculate the speed of the blue car.

**Q.**Question 4

The distance between two stations is 240 km. A train takes 4 hours to cover this distance. Calculate the speed of the train.

**Q.**

a train takes 30 minutes to cover a distance of 180 km. calculate its speed

**Q.**

Is motion relative in nature?

**Q.**A soldier marches at a speed of 2m/s . What distance will he cover in 1 hour ?

**Q.**

How do you calculate speed distance and time quickly?

**Q.**

A car is traveling at a constant speed of $27m/s$. The driver looks away from the road for $2seconds$ to tune in to a radio station on the radio. How far does the car go during this time?

**Q.**How are speed, distance and time related to each other?

**Q.**

Which of the following vary inversely with each other?

speed and distance covered.

distance covered and taxi fare.

distance traveled and time is taken.

speed and time taken.

**Q.**

The formula to calculate speed of an object is $Speed=\frac{Dis\mathrm{tan}ce\left(d\right)}{Timetaken\left(t\right)}$..

- True
- False

**Q.**

The value of speed calculated by DistanceTime gives us the average speed over the given time interval.

True

False

**Q.**If the speed of a vehicle is said to be 50 ms−1 and the time taken to travel a certain distance is 10 s, then find the distance travelled?

- 500 m
- 5 m
- 25 m
- 50 m

**Q.**A car travels at a speed of 60 m/s for first 3 seconds and 40 m/s for the next 2 seconds. The total distance (in m) travelled by the car in those 5 seconds is:

- 260

**Q.**

A transit train from Boston to New York and a passenger train from New York to Boston departed at the same time, at $3:00\mathrm{PM}$ . The distance between New York station and Boston station is $280\mathrm{miles}$. The speed of the transit train was $80\mathrm{miles}\mathrm{per}\mathrm{hour}$. The speed of the passenger train was $60\mathrm{miles}\mathrm{per}\mathrm{hour}$. At what time will the trains pass each other?

**Q.**

Question 8

The correct symbol to represent the speed of an object is

(a) 5 m/s

(b) 5 mp

(c) 5m/s−1

(d) 5 s/m