Harry potter is chasing his nemesis draco malfoy during a quidditch match. initially, harry is 35m behind draco, who has just spotted the golden snitch hovering 75m away at the edge of the playing field. draco flies at a constant speed of 40 m/s straight towards the golden snitch. if harry is originally flying at 50 m/s, what acceleration does he need to reach the snitch 175 m ahead of draco? how fast will harry be moving when he passes draco?

the acceleration of harry is equal to 66.126 m/s²

Explanation:

given,

harry is 35 m behind Draco

speed of Draco = 40 m/s

original speed of harry = 50 m/s

acceleration = ?

time taken by the Draco

    t =

     t = 1.875 s

distance covered by Harry

  d = 35 + 175 = 210 m

to calculate the acceleration of harry

a × 3.516 × 0.5 = 116.25

a = 66.126 m/s²

hence, the acceleration of harry is equal to 66.126 m/s²

1/0.14nm = 10^10/1.4 a lot

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2