What is the average acceleration of a jet ski that goes from rest to 10 m/s west in 4 s? Take the direction west to be positive,

Question

3 years ago

9

and east to be negative.
A.
2.5 m/s2

B.
-2.5 m/s2

C.
0.4 m/s2

D.
-0.4 m/s2
whats the answer i need help please

1 answer:

Lyrx [107] · Answer 1 · 2022-06-11T10:02:43+03:00

Lyrx [107]3 years ago

3 0

A.) Average acceleration = change in velocity/time = final velocity - initial velocity/time = 10-0/4 = 10/4 = 2.5m/s^2.