What is the composition of a typical football field and where is the “end zone? ”?

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

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car