Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test Physics Work Power and Energy Kinetic Energy
A 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:
1
2 : 1
2
1 : 2
3
4 : 1
4
More than one of the above
5
None of the above