PDF chapter test TRY NOW

If the velocity of a bowling ball in a straight line changes from 20 m/s to 7 m/s in 3 \(s\) in a uniform motion, then determine its acceleration.
  
1. What do you call this types of motion?
  
2. Acceleration of the bowling ball \(=\)  \(m/s\).
 
[Note: Submit the answer in whole number]