Advertisements
Advertisements
Question
What do the following measure in a car ?
(a) Speedometer (b) Odometer
Solution
(a) Speedometer of a car is used to measure the instantaneous speed of the car.
(b) Odometer of a car is used to record and measure the overall distance travelled by the car.
APPEARS IN
RELATED QUESTIONS
Abdul, while driving to school, computes the average speed for his trip to be 20 km h−1. On his return trip along the same route, there is less traffic and the average speed is 30 km h−1. What is the average speed for Abdul’s trip?
Change the speed of 6 m/s into km/h.
In addition to speed, what else should we know to predict the position of a moving body ?
Arrange the following speed in increasing order (keeping the least speed first
A scooter moving with a speed of 30 km/h.
A motorcyclist starts from rest and reaches a speed of 6 m/s after travelling with uniform acceleration for 3 s. What is his acceleration ?
Give one example of a motion where an object does not change its speed but its direction of motion changes continuously.
A car travels the first 30 km with a uniform speed of 60 km h-1 and the next 30 km with a uniform speed of 40 km h-1. Calculate :
The total time of journey,
The average speed of the car.
A train takes 2 h to reach station B from station A, and then 3 h to return from station B to station A. The distance between the two stations is 200 km. Find:
The average speed,
The average velocity of the train.
Figure shows the displacement of a body at different times .
Calculate the velocity of the body as it moves for time interval :
(i) 0 to 5 s,
(ii) 5 s to 7 s
(iii) 7 s to 9 s.
Distinguish between speed and velocity.
