Question

3. A bull that weighs 675 kg is coming at you with aspeed of 25 m/s. You are running South. Find themomentum of the bull.Find the mass and velocity

Answer 1

Given:

Weight of bull = 675 kg

Velocity = 25 m/s

Let's solve for the following:

(a) Momentum of the bull.

To find the momentum of the bull, aply the formula:

$p=mv$

Where:

p is the momentum

m is the mass of the bull

v is the velocity .

To find the mass, we have:

$m=\frac{w}{g}$

Where g is the acceleration due to gravity = 9.8 m/s²

Thus, we have:

$\begin{gathered} m=\frac{675}{9.8} \\ \\ m=68.9\text{ kg} \end{gathered}$

The mass of the bull is 68.9 kg

To find the momnetum, we have:

$\begin{gathered} p=mv \\ \\ p=68.9\times25 \\ \\ p=1722.5\text{ kg}.\text{ m/s} \end{gathered}$

Therefore, the momentum of the bull is 1722.5 kg.m/s

The mass of the bull is 68.9 kg

The velocity is 25 m/s.