F o 30° In the figure shown above, a solid cylinder of 7.07 cm radius is positioned on a frictionless plane inclined at 30° above horizontal. A force F is exerted by a string wrapped around the spool. When F has a certain critical value the center of mass of the spool does not move. When this is the case, what is the angular acceleration of the spool? Express your answer in rad/s², to at least one digit after the decimal point.

IMPORTANT! For problem 2, set t=1.5 s

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

1. Give a real world example of the following. A. Something that can be modeled as a vector. B. Something that can be modeled as a scaler.

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