Q: If we throw a body upwards with velocity of 4 m/s, at what height its kinetic energy reduces to half of the initial value? Take g = 10 m/s² यदि एक पिंड को 4 m/s वेग से ऊपर की ओर फेंका जाता है, तो कितनी ऊँचाई पर उसकी गतिज ऊर्जा आरंभिक मूल्य से आधी तक कम होगी? g = 10 m/s² लीजिए।
A.
4 m
B.
2 m
C.
1 m
D.
0.4 m
Correct Answer:
Option D -
Explanations:
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