2. A ball is thrown with 50m/s at angle of projection 37°. Final initial and final velocity in vector form and spped of ball after 2sec of projection.

1. An ant travels 2.78 cm [W] and then turns and travels 6.25 cm [S 40° E]. What is the ant's total displacement? ™T [ans: 4.94 cm [E 76° S]]

3. Ball Launch In a civil war re-enactment at Fort Warren (adjacent to Boston Harbor) a pretend cannonball (which is actually a tennis ball) is launched from a pretend cannon. The ball is launched front atop the wall of the fort, 22.0 meters above the water level below, with an initial speed of 65.0 m/s and a launch angle of 250 above horizontal. (a) How far from the base of the fort's wall will the ball splash into the water? (b) How fast and in what direction will the ball be moving when it splashes into the water?

An arrow is launched from ground level, with an initial speed of 27.2 m/s at an angle of 31.4° above the horizontal. Neglect air resistance, and take upward as the positive direction. a) How much time is needed for the arrow to reach its maximum height, b) what is this maximum heightc) how long does it take to land on the ground againd) how far does it travel right before it lands.