At some planet 'g' is 1.96m/s2. If it is safe to jump from a height of 2m on earth, then what should be corresponding safe height for jumping on that planet
5m
20m
2m
10m
A
10m
B
5m
C
2m
D
20m
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Solution
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At earth, ge=9.8m/s2he=2m
At other planet, gp=1.96h=?
⟹gpge=15
Now at some planet g reduces by 5 times, thus safe height will increases by 5 times.
Hence h=5×2=10m
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