3) A train is travelling from point A at 30 km/h for 30 minutes. It arrives at a station at 5) An airplane is flying due south with an airspeed of 300 km/h. There is a wind of 500 point B and stops for 10 minutes. The train then proceeds to point C that is 70 km km/h from the northeast. Calculate the plane's velocity relative to the ground. from point A. The time between point B and point C is 15 minutes. The train stops at C for 10 minutes and proceeds to point D which is 25 km from point C travelling at 20 m/s. The train then travelles non stop back to A. Calculate a) The average speed b) The average velocity of the train. 4) A car is travelling at 8 m/s south. It turns to the right and is now travelling east at 8 m/s west. If the turn takes 3 seconds, calculate the acceleration if any.NAME: DATE: Do all questions. All questions carry equal marks. Marks will be deducted for poor/ improper format and calculations. Only perfect solutions will carry perfect marks. 1) A person falls from the top of the CN tower (351m). Superperson arrives 5 seconds later and dives to save the person just before he/she hits the ground. Calculate superperson's initial velocity. (Use g=9.8m/s, person's initial velocity is 0 m/s) 2) A space traveller is stranded on planet x. To check the force of gravity on planet x, he throws up a ball. The ball leaves his hand with a velocity of 6 m/s. Four seconds later the ball is travelling down at 3 m/s. Calculate a) The time it takes for the ball to return to his hand. b) The velocity of the ball after 5 seconds