please explain this simpler for me

ACTIVITY 1 (Launching a Projectile in a Horizontal Direction 1. Using the tape measure, measure straight down from the top of the table to the floor. Follow the plumb line to make sure the tape measure is straight. 2. The background reading provided a few equations you can use for the motion of the projectile in the y-direction. Use the kinematic equation written especially for the vertical displacement (Ay), and rearrange to solve for time. Example: Ay= 3 at? +v_At V,, = 0, so (V,,.At) drops out of the equation leaving: _1 Ay=5 at r= | 24 a Because the sphere is in free fall after it leaves the table, the acceleration will be equal to gravitational acceleration: a=9=9.8% Therefore, the equation for the time of flight, f, can be rewritten: p= | 2A g Calculate the value for time using this equation, and write the value in Data Table 1. This time should be the same for each trial. 3. 5. Calculate the horizontal velocity the sphere will have as it leaves the table by calculating the velocity of the sphere at the botiom of the incline. First, determine the acceleration of the sphere as it rolls down the incline. The acceleration of the sphere as it rolls is given by: a=0.71g sing Substitute the angle of the incline for 6, and record the value for acceleration in Data Table 1. Use the value for acceleration to find the horizontal speed of the sphere as it leaves the table by applying the following kinematic equation: vi=w? + 2aAx * vis the translational velocity of the sphere as it reaches the botiom of the angle bar. v, is the initial velocity of the sphere. * ais the acceleration of the sphere. * Ax is the length of the angle bar from the start point to the end of the slope. Assume the sphere travels at this speed along the length of the horizontal ruler. Rearrange the equation, and substitute the value for a (acceleration) from Step 3 and the length of the angle bar from the start point to the end of the ramp. v= 7 2aAx Record the value for v. in Data Table 1. Multiply the value for the horizontal velocity (v.) by the time (found in Step 2). Record the value (in meters) in Data Table 1. This is the distance that the sphere will travel before it strikes the floor. continued on next page