A2.50-kg stone is dropped from rest at a height of 3.75 m. what impulse does gravity impart to this stone from the instant it is dropped until it hits the ground, assuming negligible air resistance?

The impulse is 21.41 kg-m/s.

Explanation:

Given that,

Mass of stone = 2.50 kg

Height = 3.75 m

We need to calculate the time

Using equation of motion

Where, s = height

u = initial speed

t = time

Put the value in the equation

We need to calculate the impulse

Using formula of impulse

Put the value into the formula

Hence, The impulse is 21.41 kg-m/s.

this means that the temperature of both substances will be equal

the answer is b

explanation: