Oscar throws diamonds at Henry on top of his 50 foot mansion with the velocity of 20 mph.

At he same time Oscar’ s Rolex slips of his wrist . Which item would hit Henry in the head faster.

 

Throws

h=-162+ vt +s

h=-162+ (20)t + (50) A=-16 B=20- C=50

X=-b± Ö b2 - 4 a c

2a

X=-20 ± Ö (-20)2 - 4 (-16) (50)

2(-16)

x= -20± Ö 400 - -3,200

-32

x= -20± Ö -3,600

-32

X=-20 - 60 X= -20 + 60

-32 -32

=25 =-1.25

 

 

 

 

 

 

 

Drops

h= -16t2 + 50 h= 0 t= t s= 50

0= v -16+ 50

0= -16t2 + 50

0= -16t2 + 50

-50 -50

-50= -16t2

-50= -16t2

-16 -16

-66= t2

Ö -66= Ö t

± = 8.124