Could you help me with these three problems?

1) The light rail train starts from rest and speeds up at a rate of 1.70 m/s2 for 13.0 seconds. It moves along a long, straight track. It goes at a constant speed for 80.0 s, and then slows down at a rate of 3.40 nifs2 until it stops at the next station. a) Sketch the velocity as a function of time. b) Find the total distance that the train moves during this time. 2) A hot air balloon with a passenger is moving vertically upward at a constant speed of 10 m/s. When the balloon is 80 m above the ground, the passenger by accident drops out of balloon his cell phone. A) How high above the ground does the cell phone reach? B) how long does it take for the cell phone to hit the ground? C) what is the cell phone's velocity immediately before it hits the ground? 3) A cannon is positioned at a horizontal surface near a hill so that when the cannon shoots a cannon ball with intial speed 20.0 m/s at angle of 30 above the horizontal, the cannon ball hits the hill when it has descended to half its maximum height. a) What are the x- and y-components of the cannon ball's velocity at the highest point of its trajectory? b) Find the maximum height reached by the cannon ball. 0) What are the x- and y-components of the ball's velocity just before it hits the hill]? d) Sketch. qualitatively. xt. y-r. wr-r and 19k! graphs for the stone's motion