A coconut falls from the top of a tall palm tree. The coconut's height above the ground in feet can be modeled by the expression 50–16t2, where t is the time in seconds after the coconut begins to fall.What does the quantity 16t2 represent in the expression?

A squirrel was sitting in a tree and dropped an acorn. The height of the acorn above the ground, in feet, after t seconds can be modeled by the expression –16t2+23.What does the quantity 16t2 represent?

A pebble is dropped from the edge of a tall cliff into the ocean. The pebble's height above the ocean in feet can be modeled by the expression 400–16t2, where t is the time in seconds after the pebble is released.What does the quantity 16t2 represent in the expression?

At the trampoline park, Lisa bounces upward with an initial velocity of 24feet per second. Therefore, Lisa's height above the trampoline in feet, t seconds after she jumps, can be modeled by the expression –16t2+24t. This expression can be written in factored form as –16t(t–1.5).What does the number 1.5 represent in the expression?

Trevor placed a football on his back deck and kicked it into his yard. The football's height above the ground, in feet, after t seconds can be modeled by the expression –16t2+30.2t+4.5.What does the number 4.5 represent?

When the angle of elevation of the sun is 45°, the shadow of a coconut tree is 18 meters in length. What is the height of the coconut tree? (Your answer will be a whole numerical value only.)