In a lab environment, you are investigating the impulse of a force exerted on a brick when the brick's speed is reduced from 2.5 m/s to a complete stop. First, you allow the brick to slam into a secured piece of wood, bringing the brick to a sudden stop. Second, you allow the brick to plow into a large slab of gelatin so that the brick comes to a gradual halt. In which situation is there a greater impulse of the force on the brick?a. The impulse is the same in both situations. b. There is a greater impulse of the force on the brick from the gelatin. c. Not enough information is given to determine the answer. d. There is a greater impulse of the force on the brick from the wall.

a) The impulse is the same in both situations

Explanation:

Impulse = Change in momentum

Impulse = m(v₂ - v₁)

The speed was brought to a stop in both cases, it doesn't matter whether it is suddenly or slowly, v₂ = 0 m/s for both cases. The initial speed is also v₁ = 2.5 m/s for both cases. Since v₂ and v₁ is the same for both cases, v₂-v₁ is also the same, hence change in momentum is the same since the mass remains unchanged.

Since impulse is concerned with change in momentum, i.e. Final momentum - initial momentum, the impulse is the same in both situations.

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is

total distance/total time

(85 + 82)/(5+3)

167/8

20 just over