MCQ
The fish belonging to the phylum$-$Arthropoda is
- ✓Cray fish.
- BDevil fish.
- CJellyfish.
- DStarfish.
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| Elperiment number | Mass of $H_2$ reacted | Mass of $o_2$ reacted | Mass of $H_2O$ produced |
| $1$ | $2g$ | $16g$ | $18g$ |
| $2$ | $4g$ | $32g$ | $36g$ |
| $3$ | - | - | $9g$ |
A freely falling object travels 4.9m in 1st second, 14.7m in 2nd second, 24.5m in 3rd second, and so on. This data shows that the motion of a freely falling object is a case of: