ICSE Class 9 - Physical Quantities Related to Motion Videos
Motion
Define acceleration and retardation in context with uniform and non-uniform motion and calculate acceleration from distance-time graph.
- a car travels 100km at a speed of 60km/h and returns at a speed of 40km/h calulate the average speed for the whole journey
- Can the three simultaneous velocities of 2, 3 and 7 units keep a body at rest? Give reason for vour answer.
- Giving reason state if a body having three simultaneous velocities 2u, 3u and 6u can have their resultant velocity zero.
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please give answer of this question
- How it becomes 36*(5/18)
- explain retardation in detail
- Why are we multiplying 90km/h by 5/18 ?
- what does the negative sign of acceleration indicate?
- examples for speed is constant but direction changes
- examples for speed changes direction remains constant
