Q1. A hockey player is standing on his skates on the frozen pond when an opposing player, moving with a uniform speed of 13 m/s, skates by with the puck. After 2.5 s, the first player makes up his mind to chase his opponent.

(a) If he accelerates uniformly at 4.0 m/s2, how long does it take him to catch his opponent? (Imagine the player with the puck remains in motion at constant speed.)

(b) How far has he travelled in this time?

Q2. The pilot of an aircraft wishes to fly due west in a 57 km/h wind blowing toward the south. The speed of the aircraft relative to the air is 200km/h.

(a) In what direction should aircraft head?

(b) What will be its speed relative to ground?