A Projectile Is Projected from the Origin with a Velocity

question 55

Multiple Choice

A projectile is projected from the origin with a velocity of 20.0 m/s at an angle of 30.0 degrees above the horizontal.The projectile lands on a roof that is 4.00 m height.What is the velocity vector when the projectile hits the roof?

• A) Vx = 17.3 m/s,Vy = +13.4 m/s
• B) Vx = 14.3 m/s,Vy = -3.23 m/s
• C) Vx = 15.2 m/s,Vy = -13.4 m/s
• D) Vx = 16.8 m/s,Vy = -3.95 m/s
• E) Vx = 17.3 m/s,Vy = -13.4 m/s

---

Definitions:

Twelve-step Meetings

Group gatherings that follow a set framework of twelve sequential steps, aiming for recovery from addiction or compulsive behaviors, commonly associated with organizations like Alcoholics Anonymous.

Recovering Person

An individual who is in the process of recovering from addiction, illness, or another significant challenge, and is working towards regaining health and well-being.

Closed

In the context of meetings or groups, referring to sessions that are not open to the general public but only to members or those who meet certain criteria.

Moderation Management

A behavioral change program and support group for individuals seeking to reduce their alcohol intake rather than abstaining altogether.