A soccer player kicks a ball with a mass of 0.42 kg. The ball travels at a velocity of 28 m/s for 1.6 s until the goalie stops it.

What was the average acceleration of the soccer ball?

A.

0.06 m/s²

B.
0.06 m/s

C.

17.5 m/s²

D.
17.5 m/s

Question

A soccer player kicks a ball with a mass of 0.42 kg. The ball travels at a velocity of 28 m/s for 1.6 s until the goalie stops it. 

 

What was the average acceleration of the soccer ball?
	
	
 
A.
	

0.06 m/s²
	
 
B.
	0.06 m/s
	
 
C.
	

17.5 m/s²
	
 
D.
	17.5 m/s

anonymous · Answer

The unit of acceleration is m/s^2, so immediately, b and d is wrong. Then, to figure out the magnitude of acceleration, just use the formula
$$v = v_0 + at$$
You know everything necessary to solve for a

anonymous · Answer

and that's it!