Question

4) A ball is thrown with 5 m/s at an angle of projection 37. Find time of f light. a) 0.6 sec b) 0.7 sec c) 1.8 sec d) 1.9 sec​

Answer 1

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A = 0.6

During the Heroic Age of Antarctic Exploration in the late 19th century, the first bases on the continent were established. In 1898, Carsten Borchgrevink, a Norwegian/British explorer, led the British Antarctic Expedition to Cape Adare, where he established the first Antarctic base on Ridley Beach.

Answer 2

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$T=2usinθg⇒5=210usinθ⇒usunθ=25</p><p> </p><p>R=ucosθT⇒200=ucosθ×5⇒ucosθ=40</p><p> </p><p>u=(usinθ)2+(ucosθ)2=(25)2+(40)2m/s</p><p> </p><p></p><p> </p><p>tanθ=usinθucosθ=2540⇒θ=tan-1(58)$