550! OBVY! lol! ope this helps1
Answer:
Reflective clothing. So vehicles can see them and stuff.
Answer:
Height reached will be 28.35 m
Explanation:
Here we can use the work energy theorem to find the maximum height
As we know by work energy theorem
Work done by gravity + work done by friction = change in kinetic energy

now we will have



so here the height raised by the stone will be 28.35 m from the ground after projection in upward direction
Arm legs nose headsssssssssss