Q 1. A hockey player gains puck at the centre court. He then skates down the opponent’s goal and scores 2 s later. After scoring, he skates back to guard his own team’s goal post, taking 3 s to run down the court. Calculate the player’s average velocity for the entire time period. (Assume that the hockey court is 5.0 x 101 m long). [3 Marks] Q 2. Tina walks to her school in 10 min. The displacement for that walk is 250 m [N360E]. What was her average velocity? [2 Marks] Q 3. Vic was watching a car race on TV. At the instant the flag was lowered to start the race, the picture on TV screen goes out due to surge in the power. When the picture come back on TV, the timer on score board reads 75 s. At this point Vic observes that leading car was on opposite side of the racing track (opposite side to that racing was started). The racing track is oval in shape and 6 Km in length. [6 Marks] a) Determine leading cars average velocity during the time when TV was without picture? ☺☺ b) What are two possible distances leading car travelled when TV was without picture? ☺ c) Given the record for fastest racing car is 450 Km/hr, which is most likely distance-leading car has travelled when TV was without picture? ☺☺ d) Based on your calculation in (c), calculate leading car average speed when TV was without picture? ☺ Q 4. Veronica’s car velocity increases from +5.0 m/s to +40 m/s in 5 s time interval. What is her average acceleration? [2 marks] Q5. Jim has a standard gearbox car. One day he parked his car on a hill and went to shopping. After shopping when he started his car, it stalled and started to roll backward down the hill. At this instant time car had the velocity of 4.0 m/s down the hill. Fortunately Jim was able to start his car so car started accelerating back up (up the hill). After accelerating for 3.0 s, the car was travelling uphill at 3.5 m/s. Calculate the car’s acceleration once Jim got it started. (Assume that the car’s acceleration was constant).