If the mass of a ball is 2 kg and its velocity is 5 m/s then its kinetic energy in SI units is? 25 10 5 2
Question
If the mass of a ball is 2 kg and its velocity is 5 m/s then its kinetic energy in SI units is?
- 25
- 10
- 5
- 2
Solution
The kinetic energy (KE) of an object can be calculated using the formula:
KE = 1/2 * m * v^2
where: m is the mass of the object, and v is the velocity of the object.
Given in the problem, the mass (m) of the ball is 2 kg and its velocity (v) is 5 m/s.
Substituting these values into the formula gives:
KE = 1/2 * 2 kg * (5 m/s)^2 KE = 1 kg * 25 (m^2/s^2) KE = 25 Joules
So, the kinetic energy of the ball is 25 Joules in SI units.
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