Q.
Two balls are thrown from the top of a tower of unknown height with same speed 10 m/s. One is projected at an angle 45o above the horizontal and other is projected 45o below the horizontal. The difference between the ranges of two projectiles is _______
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a
2 m
b
6 m
c
10 m
d
cannot be determined
answer is C.
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Detailed Solution
R1=uxt1R2=uxt1+TR2−R1=uxT=uX 2uyy=ucos450 × 2 u sin 450g=10 12 2. 10 1210= 10 m
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