Question

a ball is dropped from the top of a building . the ball takes 1/4 s to fall past 12 m length of a sign board some distance from the top of the buildings . If the velocity of the ball at the top and at the bottom of thr board are v1 and v2 then 1) v1+v2= 96ms-1 2) v1-v2 =9.8ms-1 3) v1v2 = 1m2s-2 4) v1/v2 =1

Answer 1

Answer:

mein of this communication and interpersonal the other two years