Two spherical bodies of identical diameter weighing 2 kg and 5 kg respectively are allowed to fall freely from the top of a tower at the same time. When they are 1.5 m above the ground, they will have the same value of:
Correct answer: C. Acceleration
- A. Kinetic energy
- B. Momentum
- C. Acceleration
- D. Potential energy
Explanation
In free fall, the acceleration is equal to the gravitational acceleration. So, all objects regardless of mass will fall with the same acceleration which is g= 9.8ms-2.
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About Work and Energy
Work transfers energy when a force causes displacement, while kinetic energy, gravitational potential energy and power describe motion, position and the rate of energy transfer. The work-energy theorem links net work with change in kinetic energy, and efficiency accounts for energy losses rather than treating them as energy destruction.
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