Advertisements
Advertisements
Question
Express the following in m s−1.
1 km h−1
Advertisements
Solution
1 km h−1 = `(1 km)/(1 h) = (1 xx 1000 m)/(60 xx 60 s)`
`=> 1 km h^-1 = (1 xx 10 m)/(6 xx 6 s)`
∴ 1 km h−1 = `(10 m)/(36s)`
∴ 1 km h−1 = `(0.278 xx m)/s`
∴ 1 km h−1 = 0.278 ms−1
APPEARS IN
RELATED QUESTIONS
What does the odometer of an automobile measure?
What does the path of an object look like when it is in uniform motion?
Name the physical quantity which gives us an idea of how slow or fast a body is moving.
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 ?
Arrange the following speed in increasing order (keeping the least speed first):
A bicycle moving with a speed of 200 m/min.
An aircraft travelling at 600 km/h accelerates steadily at 10 km/h per second. Taking the speed of sound as 1100 km/h at the aircraft’s altitude, how long will it take to reach the ‘sound barrier’ ?
Convert a speed of 54 km/h into m/s.
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 1 second ?
What is the relation between distance and time when the body is moving with variable velocity?
What are the uses of equations of motion?
