Question
Download Solution PDFAn object of mass 11 kg is moving with a uniform velocity fo 5 ms-1. What is the kinetic energy possessed by the object?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is 137.5 J.
- Given, mass (m) = 11 kg, velocity (v) = 5 ms-1.
Kinetic energy = \({1\over 2} mv^2\)
So, the kinetic energy of the object is \({1 \over 2}*11*5^2 = 137.5\) J.
Key Points
- It is the energy of object mass in motion.
- When an objects' mass doubles, its kinetic energy also doubles.
- When an objects' speed doubles, its kinetic energy quadruples.
- When a pendulum goes uphill (top point), it loses kinetic energy.
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