Homework

Engineering 111 - Homework 12G

Instructions: Complete this form and click submit. The answers will be posted on the course home page after the due date and before the next exam. If you want to change any of your answers after you click submit, then go back and give your answers again and click submit.

Your Name: e.g. John Doe

Your Campus ID: e.g. 12345678

Your SFA Email Address: e.g. doejd@titan.sfasu.edu

Due Date

Use g = 9.81m/s² for the problems below. These are modifications of problems 10.3, 10.4, 10.5, and 10.6 from your book.

1. The projectile of a trebuchet is fired at an angle of 65° relative to the ground. It is fired with a velocity of 100m/s. Find the x-component of the acceleration (a_x). Give your answer using three significant figures and include units with no spaces (e.g. 1.23m/s2).

2. The projectile of a trebuchet is fired at an angle of 65° relative to the ground. It is fired with a velocity of 100m/s. Find the y-component of the acceleration (a_y). (e.g. 1.23m/s2)

3. How long was the projectile from the previous problem in the air? (e.g. 1.23s)

4. How high did the projectile in the previous problem go? (e.g. 1.23m)

5. How far did the projectile in the previous problem go? (e.g. 1.23m)

6. A projectile is fired at an angle of 25° with respect to the ground. What initial speed must a projectile have in order to have a range of 20 meters? (e.g. 1.23m/s)

Your Name:	e.g. John Doe
Your Campus ID:	e.g. 12345678
Your SFA Email Address:	e.g. doejd@titan.sfasu.edu
Due Date

	1. The projectile of a trebuchet is fired at an angle of 65° relative to the ground. It is fired with a velocity of 100m/s. Find the x-component of the acceleration (a_x). Give your answer using three significant figures and include units with no spaces (e.g. 1.23m/s2).
	2. The projectile of a trebuchet is fired at an angle of 65° relative to the ground. It is fired with a velocity of 100m/s. Find the y-component of the acceleration (a_y). (e.g. 1.23m/s2)
	3. How long was the projectile from the previous problem in the air? (e.g. 1.23s)
	4. How high did the projectile in the previous problem go? (e.g. 1.23m)
	5. How far did the projectile in the previous problem go? (e.g. 1.23m)
	6. A projectile is fired at an angle of 25° with respect to the ground. What initial speed must a projectile have in order to have a range of 20 meters? (e.g. 1.23m/s)