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प्रश्न
Can a body have negative speed?
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उत्तर
No a body cannot have a speed negative.
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संबंधित प्रश्न
Define Speed.
The relation S= v x t can easily be used to find the tota l distance covered by a body moving with non -uni form speed. (Yes/ no)
Is the average speed during different time intervals for a uniform motion the same or different?
A girl had designed a clap switch for a science exhibition that enabled her to switch on or off an alarm just with clapping of hands. While testing her device in a hall, she noticed that once the alarm has sounded it followed with another one due to echo of the clap, that is, the sound reflected by the walls. She recorded the two soundings of alarm with her tape recorder and found out that time difference in between them is 0.1 s. If the distance of the walls be 15 m, calculate the speed of sound.
A car travels 30 km at a uniform speed of 60 km/h and the next 30 km at a uniform speed of 20 km/h. What is its average speed?
Every object moves with a constant speed.
A car increases its speed from 20 km/h to 50km/h in 10 seconds. Its acceleration is ______.
A bus travels 54 km in 90 minutes. The speed of the bus is ______.
The correct symbol to represent the speed of an object is ______.
A car starting from rest moves with a uniform acceleration of 0.2 ms-2 for 3 min. Find the
- speed acquired
- the distance traveled.
