Abuilding has a ramp to its front doors to accommodate the handicapped. if the distance from the building to the end of the ramp is 22 feet and the height from the ground to the front doors is 6 feet, how long is the ramp? (round to the nearest tenth.)

Answer : Length of the ramp, AC = 22.8 ft.

Explanation :

From the attached figure,

Height of building, AB = 6 ft

Distance from the building to the end of the ramp, BC = 22 ft

Using Pythagoras theorem :

The length of the ramp is 22.8 ft

Hence, this is the required solution.

The length of the ramp is 22.8 feet.

Explanation:

The distance of the ramp end from the building = AB = 22 feet

Height from the ground to front door = BC = 6 feet

The length of the ramp AC.

According to Pythagoras theorem.

The length of the ramp is 22.8 feet.

conduction, convection, radiation

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.