Q: A model-rocket club is standing at the edge of a 40.0 m building. They arrange a launcher so that it is off the cliff’s edge, and they launch a rocket straight upward at an initial velocity ( v ) of 380.0 m/s. Neglecting wind resistance, how long will it take for the rocket toContinue reading “KINEMATICS: Total Time of Flight for a Projectile”
Tag Archives: Kinematics
AP PHYSICS: Rotational Kinematics
Q: A 25.0 kg grindstone disc with a 0.250 m radius ( r ) rotates with an angular speed ( ω ) of 30.0 rad/s. When power to the disc is shut off, it decelerates and comes to rest over the course of 20.0 s. When the grindstone is shut off, a speck of dustContinue reading “AP PHYSICS: Rotational Kinematics”
AP PHYSICS: Speed and Velocity
Q: Officer Chuck, a former track star at Clemson University, is in pursuit of a suspect that is 500 meters ahead of him. The suspect runs with a speed of 5 meters per second. Conversely, Chuck is running at a speed of 30 meters per second. Assuming that both participants in this sprint run inContinue reading “AP PHYSICS: Speed and Velocity”
KINEMATICS: The Speedboat Will Miss its Mark by What Distance?
A speedboat travels eastward at 80 knots (150 km/h) through a northward current of water moving 4.00m/s. Q1: What is the speedboat’s velocity vector relative to the starting port? What is the angle of travel? Q2: If the boat’s captain wanted the boat to travel due east without getting off course, how far off courseContinue reading “KINEMATICS: The Speedboat Will Miss its Mark by What Distance?”
RENAISSANCE PHYSICS 