2. 1. An invader shoots a 45.0 kg cannonball at a speed of 150 m/s at...

Transcribed Image Text:

2. 1. An invader shoots a 45.0 kg cannonball at a speed of 150 m/s at an angle of 32.0. He is trying to get the cannonball over a wall that is 375 meters away and 45.0 meters high. a) Does the cannonball make it over the wall? Why or why not? b) What is the maximum height reached by the cannonball? c) How long is the cannonball in the air? d) How far from the launch site does the cannonball land, if it lands at the same height it was shot from? Position A B 1 2 3 4 Time (s) Two identical objects, A and B, move along straight, parallel, horizontal tracks. The graph at left represents the position as a function of time for the two objects. (a) Between 3 seconds and 4 seconds... i) which object is moving at a constant speed? How can you tell? ii) which object is accelerating? How can you tell? ii) which object is catching up to the other? b) Att 4 seconds, which object is moving faster? How can you tell? 2. 1. An invader shoots a 45.0 kg cannonball at a speed of 150 m/s at an angle of 32.0. He is trying to get the cannonball over a wall that is 375 meters away and 45.0 meters high. a) Does the cannonball make it over the wall? Why or why not? b) What is the maximum height reached by the cannonball? c) How long is the cannonball in the air? d) How far from the launch site does the cannonball land, if it lands at the same height it was shot from? Position A B 1 2 3 4 Time (s) Two identical objects, A and B, move along straight, parallel, horizontal tracks. The graph at left represents the position as a function of time for the two objects. (a) Between 3 seconds and 4 seconds... i) which object is moving at a constant speed? How can you tell? ii) which object is accelerating? How can you tell? ii) which object is catching up to the other? b) Att 4 seconds, which object is moving faster? How can you tell?