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Nick gagnon

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1.

An athlete swims the Length L of a pool in a time t1 and makes the return trip to the starting position in a time t2. If she is swimming initially in the positive x-direction, determine her average velocities symbolically in

(a) the first half of the swim,

(b) the second half of the swim,

(c) the round trip,

(d) What is her average speed for the round trip?

2.

An object moves with constant acceleration 4.00 m/s2 and over a time interval reaches a final velocity of 12.0 m/s.

(a) If its original velocity is 6.00 m/s, what is its displacement during the time interval?

(b) What is the distance it travels during this interval?

(c) If its original velocity is -6.00 m/s, what is its displacement during this interval?

(d) What is the total distance it travels during the interval in part (c)?