Question

Calculate the momentum of a 2000-kg elephant charging a hunter at a speed of 7.50 m/s.

A. 15,000 kg·m/s
B. 10,000 kg·m/s
C. 15,500 kg·m/s
D. 7,500 kg·m/s

Answer 1

To calculate the momentum of a 2000-kg elephant charging at 7.50 m/s, use the formula p = m × v, which gives a momentum of 15000 kg·m/s.

Step-by-step explanation:

Calculating Momentum in Physics

The concept of momentum in physics is a measure of the quantity of motion an object has. According to the principle of conservation of momentum, if no external force acts on a system, the total momentum of the system remains constant. The formula for linear momentum (p) is the product of an object's mass (m) and its velocity (v), expressed as p = m × v.

Elephant Charging Scenario

For the scenario of a 2000-kg elephant charging at a speed of 7.50 m/s, we can calculate the elephant's momentum:

• Momentum of elephant = mass of elephant × velocity of elephant
• Momentum of elephant = (2000 kg) × (7.50 m/s)
• Momentum of elephant = 15000 kg·m/s

Therefore, the correct answer is A. 15000 kg·m/s.