Advertisements
Advertisements
Question
A car moving on a straight path covers a distance of 1 km due east in 100 s. What is the speed of the car?
Advertisements
Solution
Speed of the car = Distance/time taken
= `(1 "km")/(100 "s") = "1000 m"/"100 s" = "10 m/s"`
APPEARS IN
RELATED QUESTIONS
What do the following measure in a car ?
(a) Speedometer (b) Odometer
In addition to speed, what else should we know to predict the position of a moving body ?
Bus X travels a distance of 360 km in 5 hours whereas bus Y travels a distance of 476 km in 7 hours. Which
bus travels faster ?
A car is moving along a straight road at a steady speed. It travels 150 m in 5 seconds:
How long does it take to travel 240 m ?
A bus moving along a straight line at 20 m/s undergoes an acceleration of 4 m/s2. After 2 seconds, its speed will be:
Give an example of motion in which the average speed is not zero but the average velocity is zero.
A car accelerates at a rate of 5 m s-2. Find the increase in its velocity in 2 s.
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.
A body moves from rest with uniform acceleration and travels 270 m in 3 s. Find the velocity of the body at 10 s after the start.
Define speed of a body.
