A)
B)
C)
D)
Correct Answer: D
Solution :
[d] Velocity of a projectile at any instant of time (t) is \[{{v}^{2}}={{v}_{x}}^{2}+{{v}_{y}}^{2}={{(ucos\theta )}^{2}}+{{\left( u\sin \theta -g\frac{x}{u\cos \theta } \right)}^{2}}\] \[\therefore KE=\frac{1}{2}m{{u}^{2}}-mgx\,\tan \theta +\frac{m{{g}^{2}}{{x}^{2}}}{{{u}^{2}}{{\cos }^{2}}\theta }\] The given equation represents the equation of a parabola.
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