17. How long will it take a car to stop, in seconds, if its initial speed is 60 km/hr and it decelerates at 2.33 m/sec2? What distance will it travel? 18. A vehicle travels 80 km to point "A" in one hour. The return journey takes 1.5 hours. What is the average speed for: the first part of the trip, the second part of the trip, and the round trip? 19. A crane lifts a load 45 metres in 65 seconds what is the load's average velocity? 20. An object is dropped from a height. What is its velocity after 2 seconds? 21. An object is thrown vertically upwards with an initial velocity of 17.8 m/s. What is the maximum height that the object will reach? 22. A brick is dropped from a height of 33 metres, what is its velocity just before impact with the ground? 23. A ball is thrown vertically upward with an initial velocity of 15.4 m/s. What distance will it have traveled after 2.1 seconds