A) Gravitational potential energy at maximum height of projectile path will be minimum
B) The kinetic energy of ball at maximum height of projectile path will be zero
C) The horizontal component of momentum will not change
D) The vertical component of momentum will not change
Correct Answer: C
Solution :
Horizontal component of velocity \[{{v}_{x}}=u\cos \theta \] Vertical component of velocity \[{{v}_{y}}=u\text{ }sin\theta \] Horizontal component of momentum \[{{p}_{x}}=mu\text{ }cos\theta \] Vertical component of momentum \[{{p}_{y}}=mu\text{ }sin\theta \] The vertical component of momentum at maximum point of path is zero. But horizontal component remains constant.
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