William stern's formula for the intelligence quotient was mental age/chronological age ã— 100. what is the iq of a 12-year-old with a mental age of 9? a. 125 b. 135 c. 75 d. 85

William Stern's formula for the intelligence quotient was mental age/chronological age × 100. What is the IQ of a 12-year-old with a mental age of 9?

c. 75

a. formula: f=ma or f/m=a

10,000n/1,267kg≈7.9m/

b. formula: a= and s=d/t

speed= 394.6/15

s=26.3m/s

a=

a=1.75m/

c. 7.9-1.75=difference of 6.15m/

d. the force that most likely caused this difference is friction forces