A ball at rest starts rolling down a hill with a constant acceleration of 3.2 meters/second2. What is the final velocity of the ball after 6.0 seconds?

A.
–9.6 meters/second
B.
9.6 meters/second
C.
–19 meters/second
D.
19 meters/second

Question

A ball at rest starts rolling down a hill with a constant acceleration of 3.2 meters/second2. What is the final velocity of the ball after 6.0 seconds?

A. 
–9.6 meters/second
B. 
9.6 meters/second
C. 
 –19 meters/second
D. 
19 meters/second

Vocaloid · Answer

vf = v0 + at

vf is final velocity (which you’ll solve for)
v0 is initial velocity (the ball starts at rest, so 0)
a is acceleration 
t is time

Plug in the appropriate quantities and solve for vf

gabriellacummings16 · Answer

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