Advertisements
Advertisements
प्रश्न
Change the speed of 6 m/s into km/h.
Advertisements
उत्तर
We have to convert 6 m/s into km/h. So,
`6 "m/s" = ((6) (3600))/(1000) "km/h"`
= `21.6 "km/hr"`
APPEARS IN
संबंधित प्रश्न
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’ ?
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 ?
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 ?
A train starting from rest moves with a uniform acceleration of 0.2 m/s2 for 5 minutes. Calculate the speed acquired and the distance travelled in this time.
A car is moving on a straight road with uniform acceleration. The speed of the car varies with time as follows :
Time (s) : 0 2 4 6 8 10
Speed (m/s) : 4 8 12 16 20 24
Draw the speed-time graph by choosing a convenient scale. From this graph :
(1) Calculate the acceleration of the car.
(2) Calculate the distance travelled by the car in 10 seconds.
The graph given alongside shows how the speed of a car changes with time:
(i) What is the initial speed of the car ?
(ii) What is the maximum speed attained by the car ?
(iii) Which part of the graph shows zero acceleration ?
(iv) Which part of the graph shows varying retardation ?
(v) Find the distance travelled in first 8 hours.
What do you mean by motion in one direction?
A car accelerates at a rate of 5 m s-2. Find the increase in its velocity in 2 s.
The velocity-time graph of a moving body is given below in Figure
Displacement in each part AB, BC and CD.
Derive th e equation of motion.
S = ut+ `1/2` at2,
Where the symbols have their usual meanings
