Advertisements
Advertisements
Question
A car is moving along a straight road at a steady speed. It travels 150 m in 5 seconds:
What is its average speed ?
Solution
We have :
Distance (d) = 150 m
Time (t) = 5s
So, we can calculate average the speed as :
Avearge Speed = `" Total distance travelled"/"time"`
Average Speed for the entire journey :
= `150/5`
= 30 m/s
APPEARS IN
RELATED QUESTIONS
Fill in the following blank with suitable word:
The physical quantity which gives both, the speed and direction of motion of a body is called its……………
A car is moving along a straight road at a steady speed. It travels 150 m in 5 seconds:
How far does it travel in 6 seconds ?
Which of the following can sometimes be 'zero' for a moving body?
(i) average velocity
(ii) distance travelled
(iii) average speed
(iv) displacement
Which of the following could not be a unit of speed?
Express the following in m s-1.
18 km min-1
A car moving on a straight path covers a distance of 1 km due east in 100 s. What is velocity of the car?
Draw the shape of the velocity-time graph for a body moving with (a) Uniform velocity and (b) Uniform acceleration.
Figure shows the displacement of a body at different times .
Calculate the average velocity during the time interval 5 s to 9 s ,
[Hint : From 5 s to 9 s , displacement = 7 m - 3m = 4m]
A train travels with a speed of 60 km h-1 from station A to station B and then comes back with a speed 80 km h-1 from station B to station A. Find -
- The average speed
- The average velocity of the train.
What is the relation between distance and time when the body is moving with uniform velocity?