Question

Jack took 5.5 seconds to fall down the hill. His initial velocity was 0.5 meters per second. His final velocity was 2.5 meters per second. Calculate his average acceleration.

Answer 1

use the formula Vf = Vi + at

Answer 2

huh?

Answer 3

re-arrange the formula to make "a" the subject

Answer 4

still no clue

Answer 5

Vf = final velocity
Vi = initial velocity
t = time
a = acceleration

does that help?

Answer 6

yep

Answer 7

OK, go for it