The crossbar of a goal post on a professional American football field sits at a height of 3.05 meters (10 feet) above the field.

Answer:

the lump descends

Explanation:

The full articulation of the query is

Upon fully submerging a 3 kg lump of material in a certain fluid, the fluid that would have occupied the space now filled by the lump weighs 2 kg. (a) When released, does the lump float up, sink, or remain steady

(a)

= Buoyant force acting upward on the lump

= mass of irregular lump = 3 kg

= mass of fluid displaced = 2 kg

The upward buoyant force on the lump is given by the weight of the displaced fluid, thus

the weight of the irregular lump of material is represented as

Given that the weight of the lump downward exceeds the upward buoyant force, the lump will indeed descend

To address this question, we will utilize concepts linked to centripetal force, aligning it with the static frictional force acting on the object. Using this relationship, we can derive the velocity and input the known values. The defined values are:

The maximum velocity can be determined using centripetal force,

Should be equal to,

As a result, the highest speed achievable through the arc without slipping is 9.93m/s