A thin circular hoop is released from rest at the top of a plane inclined at 12.1 degrees above the horizontal. Assume perfect rolling takes place. How long does it take the hoop to roll 8.9 m down the plane surface? Express your answer in s, to at least one digit after the decimal point.

A 20 N stone is thrown vertically upward from the ground. It is observed that, when it is 15 m above the ground, it travels with a velocity of 25 m / s upwards. What will its speed be when it is thrown? A) 30.31 m/sB) 15.16 m/sC) 18.19 m/sD) 319 m/s

Part A What is the angular momentum relative to the origin of the 400 g particle in (Figure 1)? Express your answer in kilogram meters squared per second. Enter components of momentum separated by commas. View Available Hint(s) Lz. Ly, L₂= —| ΑΣΦ Submit Previous Answers 3 → X Incorrect; Try Again; 5 attempts remaining ? kg-m²/s

(b) y-coordinate Need Help? Read It Watch It Submit Answer 2. DETAILS SERCP11 3.2.P.009. MY NOTES ASK YOUR TEACHER The best leaper in the animal kingdom is the puma, which can jump to a height of 3.7 m when leaving the ground at an angle of 45°. With what speed must the animal leave the ground to reach that height? m/s Need Help? Read It Watch It PRACTICE AOTHER MY NOTES ASK YOUR TEACHER 3. DETAILS SERCP11 3.2.P.014. From the window of a building, a ball is tossed from a height yo above the ground with an initial velocity of 8.90 m/s and angle of 22.0° below the horizontal. It strikes the gyound 6.00 s (a) If the base of the building is taken to be the origin of the coordinates, with upward-the positive y-direction, what are the initial coordinates of the ball? (Use the following as necessary: Yo: Assume SI units. Do not substitute numerical values; use variables only.) later. 10:03

Just need D and E A) 0.0517 m/s^2 B) 5.37 N C) 4.8076 N

At the Earth's surface, a projectile is launched straight up at a speed of 7.5 km/s. To what height will it rise? Ignore air resistance. 2.87e+06 Your response differs from the correct answer by more than 10%. Double check your calculations. m

a. Area under v-t graph (distance covered) =0.15m b.maximum distance covered by cart= 0.9m c. x-acceleration= m/s^2 solve only d and e

A foul ball is hit straight up into the air with a speed of 30.0 m/s. Calculate the maximum height reached by the ball. ANSWER FORMAT: space EXAMPLE: 10.0 N

If the speed of the skateboarder at point A is v= 1.2 m/s, what is her speed at point B? Assume that friction is negligible. Express your answer using appropriate units. V Templates Symbols undo redo reset keyboard shortcuts help L Value Units