Fortnite Season 6 Week 2 challenges are available in-game, which brings a list of new challenges to complete for XP prizes. Here is everything you need to know about the events.
Fortnite Season 6 Week 2 challenges have been released today at 11am ET/3pm GMT - March 23rd, 2021, slightly earlier than we anticipated. Let’s take look at the challenges:

1. Craft a Mechanical Bow, a Mechanical Shockwave Bow, and a Mechanical Explosive Bow. To craft:
The Mechanical Bow you need a Makeshift Bow and two Mechanical Parts.
The Mechanical Explosive Bow you require a Mechanical Bow and Grenades.
The Mechanical Shockwave Bow you need a Mechanical Bow and Shockwaves.
2. Deal 300 damage with Mechanical weapons. 
3. Deal 1000 explosive damage to opponents. 
4. Get a headshot with a bow. 
5. Tame a boar:  Boar can be found in Weeping Woods. You just have to lure one in with a fruit or vegetable, then slowly sneak up behind it, and hold the interact button to tame it. 
6. Ride five different ziplines. You can find four Ziplines at The Spire. More ziplines can be found in the woodlands around Weeping Woods, you can also complete this in one go rather easily. Simply ride the powerlines that run all the way from Retail Row, through Dirty Docks and down to Steamy Stacks.
7. Obtain four literature samples from Pleasant Park, Retail Row, or Lazy Lake.

By completing each challenge you will earn 24,000 XP. You may earn 24,000 x 7 = 168,000 XP in total. The challenges are not too hard to complete but you need to know how to craft a weapon

Here is Season 6 map for your reference. Good Luck!