1. [-/6 Points] DETAILS MY NOTES ASK YOUR TE Practice with vectors: (important!*) For each of the vectors below, I.) do a rough sketch of it II.) convert it to the form it is not already in (size & direction, or components) (Note: cw=clockwise, ccw=counterclockwise) a.) D = 6 m, 400 ccw from +x axis DX = | Im Dy = [ b.) Vav = 5 m/S, 200 cw from -y axis Vav x = m /s Vav y = m /s C.) Qx = -5 m, Qy = +4 m m, cw from - x axis *Highly recommended: For even more practice, do the Vector Practice Worksheet linked in Canvas. You can find this under the "Course Materials" menu item ("Intro & Misc Materials" Tab). MacBook 868 F4 F7 O- Q W E R Y U O P A S D F G H . . K L . . Z X C V B N M alt option command command option*Highly recommended: For even more practice, do the Vector Practice Worksheet linked in ("Intro & Misc Materials" Tab). 2. [1.5/4.5 Points] DETAILS PREVIOUS ANSWERS A cannonball is fired out of a cannon at 100 m/s at 30 above horizontal, on level ground. a.) How long will the cannonball be in the air? b.) What is the maximum height above the ground it will reach? m c.) How far will the cannonball travel horizontally? m MacBook 888 FS FA F7 W # un de 2 Q W m Y U A S D F G H3. [0/5 Points] DETAILS PREVIOUS ANSWERS A ball is thrown off a 25 m high cliff at 9 m/s, 500 above the horizontal. How long does it take to hit the ground? 17.74 X s5. [0/3 Points] DETAILS PREVIOUS ANSWERS MY NOTES ASK YOUR TEACHER A cork shoots out of a champagne bottle at an angle of 30.0 above the horizontal. If the cork travels a horizontal distance of 1.30 m in 1.30 s, what was its initial speed? 6.48294 x m/s7. [0/5 Points] DETAILS PREVIOUS ANSWERS MY NOTES ASK YOUR TEACHER An astronaut on the planet Zircon tosses a rock horizontally with a speed of 7.05 m/s. The rock falls through a vertical distance of 1.40 m and lands a horizontal distance of 7.95 m from the astronaut. What is the size of the acceleration due to gravity on Zircon? 9zircon = 2.482 * m / s 2 8. [-/2 Points] DETAILS MY NOTES ASK YOUR TEACHER In a grocery store, you push a 16.5 kg shopping cart, such that it feels a horizontal net force of 10.0 N. If the cart starts at rest, how far does it move in 3.00 s? m Later, while taking your groceries back to the car, you accidentally let go of your cart. It rolls straight down a grassy slope at a constant speed of 10 m/s. What is the net force on the cart during this motion? NJ A B C E G