Question : Neglecting the air resistance, the time of flight of a projectile is determined by
(A) 𝑈 𝑣𝑒𝑟𝑡𝑖𝑐𝑎l
(B) 𝑈ℎ𝑜𝑟𝑖𝑧𝑜𝑛𝑡𝑎𝑙
(C) U=U_{vertical}^{2}+U^{2}horizontal
(D) U=U\left( U_{vertical}^{2}+U_{horizontaL}^{2}\right) ^{\dfrac{1}{2}}
Answer : option (A)
Solution :
