Sir dudley the dextrous is loading cannons on top of the castle\'s tallest towers in preparation for an expected attack. he slips, and a 18.0 kg cannonball rolls to the edge of the tower (which has a perfectly horizontal surface), and falls to the ground below. it takes the cannonball 2.15 seconds to fall to the ground, and air resistence is negligible. how much work is done by gravity on the falling the fall, what is the average power transfer to the cannonball due to the force of

The x-coordinate of a particle in curvilinear motion is given by x = 3.1t3 - 4.9t where x is in feet and t is in seconds. the y-component of acceleration in feet per second squared is given by ay = 2.3t. if the particle has y-components y = 0 and vy = 5.0 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 1.8 sec. sketch the path for the first 1.8 seconds of motion, and show the velocity and acceleration vectors for t = 1.8 sec. answers: v = ft/sec a = ft/sec2

Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?

70 give a real life example showing how sensory neurons work with the motor neurons