Question:medium
A 1.5 kg object is moving with a velocity of \( 4 \, \text{m/s} \). What is its kinetic energy?
A 1.5 kg object is moving with a velocity of \( 4 \, \text{m/s} \). What is its kinetic energy?
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The kinetic energy of an object is calculated using the formula \( KE = \frac{1}{2} m v^2 \). Make sure to square the velocity before multiplying.
Updated On: Jan 13, 2026
- \( 12 \, \text{J} \)
- \( 24 \, \text{J} \)
- \( 6 \, \text{J} \)
- \( 48 \, \text{J} \)
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The Correct Option is A
Solution and Explanation
Step 1: Apply the kinetic energy formula \[KE = \frac{1}{2} m v^2\]Explanation of terms: - \( KE \) represents kinetic energy - \( m \) denotes the object's mass - \( v \) signifies the velocityProvided data: - \( m = 1.5 \, \text{kg} \) - \( v = 4 \, \text{m/s} \)Substitute the given values into the formula:\[KE = \frac{1}{2} \times 1.5 \times (4)^2 = 12 \, \text{J}\]Result: The kinetic energy of the object is \( 12 \, \text{J} \). This corresponds to option (1).
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