Fork travel on a mtb I just wanted to ask how much fork travel does this bike have and is it worthy of buying??
Information about fork travel should be present in marketing materials to a bicycle. If you are looking at a web shop page, such information is usually hidden somewhere in the lower part of a page.
Alternatively, the travel is usually specified somewhere on the fork itself. If you could see the bicycle in person or ask the seller, that would be the most reliable method.
The provided picture is in quite low resolution, which does not allow to recognize the brand of frame, fork, or other essential details. Neither it helps to see any inscriptions on the fork.
Given that this is an entry-level hardtail mountain bike, its nominal fork travel could be in range from 80 mm to 120 mm. Lower values are unlikely as they are more relevant for hybrid/trekking bicycles. Longer travel is unlikely because longer travel hardtails are less popular and typically more high tier. I'd wager it has 100 mm of travel, as it is the most popular value for such machines.
Whether it is not worth buying anything or not is up for the potential buyer to decide. I doubt we can give you an advice here, especially given how little information about anything is given.