advertisement

Projectiles at an Angle - HW #1 SHOW ALL WORK – INCLUDE A LABELED DIAGRAM – SHOW TRIANGLE FOR RESOLVING VELOCITY VECTORS 1. Sideshow Bob is fired from a cannon... again. He leaves the ground at an angle of 42° with a total velocity of 72 m/s. a. What is the vertical component of Sideshow Bob’s velocity? b. What is the horizontal component of Sideshow Bob’s velocity? c. What is Sideshow Bob’s maximum height? d. Krusty is standing 535 meters away from the cannon. Does Sideshow Bob hit Krusty? 2. A long jumper takes off at an angle of 20o with the horizontal and reaches a maximum height of 0.55 m at midflight. a) How long is she in the air? b) What is the forward (horizontal) component of her velocity? c) How far does she jump? Projectiles at an Angle - HW #1 3. On level ground, a ball is thrown forward and upward. The ball is in the air 2 s and is caught 35 m from the thrower. a) With what velocity and in what direction (angle) was the ball thrown? 4. A rock climber tosses a small first aid kit to another climber higher on the mountain. The kit is thrown at a velocity of 11 m/s at a velocity of 650 from the horizontal. When the kit is caught, it is at the apex of its path. How much higher is the second climber? 1a. 48.2 m/s 2b. 9 m/s 1b. 53.5 m/s 2c. 6.1 m 1c. 118.5 m 3. 20.1 m/s at 290 1d. no, Δs=524.3 m 4. 5.1 m 2a. 0.67 s