Question

Please answer these questions! they all are linked to one another! thank you in advance!

Bob Beamon's long jump at the 1968 Olympics was literally "like nothing seen before. As you will see in the upcoming video he broke the world record by 57 cm (we will probably be converting that to inches in the Exercise). He would have won the 2012 Olympics long jump by a 55 cm! Bob Beamon's historic leap. Chap 6 Quiz Q1 Homework Unanswered In this quiz we are going to re-engineer" Bob Beamon's historic long jump in the 1968 Olympics. We know heju for our American sensibilities let's convert that to feet. ped a ·Just Numeric Answer A Submit 3 attempts lef Chap 6 Quiz Q2 How many inches is 0.2 feet?

Answer 1

We know 1m = 3.281 Foot (approximately) So, 8.90 m = 8.90 times 3.281 feet [8.90 m = 29.2 feet] we know 1 inch = 1/12 Feet or 1 Feet = 12 inches. So, 0.2 Feet = 0.2 times 12 inches [0.2 Feet = 2.4 inches] v = 10.1 m/s Now v_x = v cos theta Here theta = 26.5 degree So, v_x = 10.1 cos(26.5 degree) = 10.1 times 0.8949 [v_x = 9.0388 m/s] v_y = v sin theta = 10.1 times sin(26.5 degree) = 10.1 times 0.446 [v_y = 4.5066 m/s] When he goes up initial velocity v_y = 4.5066 m/s & acceleration is a = -9.8 m/s^2 (acceleration due to gravity) His final velocity in zero at top (v_y = 0) So, using I t equation of motion v_y = v_y + at rightdoublearrow 0 = 4.5066 m/s - 9.8 m/s^2 times t rightdoublearrow [t = 4.5066/9.8 = 0.4599 second] Total time of him in air (T)