A 3 kg object is moving with a speed of 5 m/s. What is its kinetic energy?

A 3 kg object is moving with a speed of 5 m/s. What is its kinetic energy?

Step 1: Identify the mass of the object. In this case, the mass (m) is 3 kg.
Step 2: Identify the speed of the object. Here, the speed (v) is 5 m/s.
Step 3: Use the formula for kinetic energy, which is KE = 0.5 * m * v².
Step 4: Calculate v² (the speed squared). So, 5 m/s * 5 m/s = 25 m²/s².
Step 5: Multiply the mass (3 kg) by v² (25 m²/s²). So, 3 kg * 25 m²/s² = 75 kg*m²/s².
Step 6: Multiply the result by 0.5. So, 0.5 * 75 kg*m²/s² = 37.5 J.
Step 7: Round the answer if needed. The kinetic energy is approximately 37.5 J, which can be rounded to 35 J.

Kinetic Energy – Kinetic energy is the energy an object possesses due to its motion, calculated using the formula KE = 0.5mv², where m is mass and v is velocity.