Question
Download Solution PDFA man increases the speed of his car from 10 m/s to 20 m/s on level road. The ratio of the final kinetic energy to initial kinetic energy is:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
- Kinetic energy (KE): The energy possessed by a body by virtue of its motion is called kinetic energy.
Where m = mass of the body and v = velocity of the body
CALCULATION:
Given that:
Initial speed (u) = 10 m/s
Final speed (v) = 20 m/s
Let the total mass is m.
The ratio of final KE to initial KE is given by:
Last updated on Jul 1, 2025
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