A particle has a position vector given by
r ( t ) = 3. 0t 2 i + 4. 0t 3 5. 0t 4 j
where r is in meters and t is in seconds. Find the average velocity and average acceleration from t = 2.0 s to t = 4.0 s.
1. A police car is traveling in a straight line with constant speed vp . A truck traveling in the same direction
with speed 3 vp passes the police car. the truck driver realizes that she is speeding, and immediately
slow down at a constant rate until
Instructions for PC1431
1. Each tutorial group will be divided into subgroups A and B. Your subgroup allocation will
be notied to you by email.
2. Due to the ow of lecture material being modied by public holidays, this semesters