A body is projected at t=0 with a velocity 10 ms−1 at an angle of 60∘ with the horizontal. The radius of curvature of its trajectory at t=1 s is R. Neglecting air resistance and taking acceleration due to gravity g=10 ms−2, the value of R is:
Held on 11 Jan 2019 · Verified 6 Jul 2026.
10.3 m
2.8 m
2.5 m
5.1 m
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