Kinematics Question 639
Question: For an observer on trolley direction of projection of particle is , while for observer on ground ball rise vertically. The maximum height reached by ball from trolley it’s
Options:
A) 10 m
B)15 m
C) 20 m
D)5 m
Show Answer
Answer:
Correct Answer: B
Solution:
[b] $ 10-\text{v}\cos 60{}^\circ =0\Rightarrow \text{v}\text{=}\text{20 m/s} $
$ \text{H}=\frac{{{\text{v}}^{\text{2}}}\text{s}in^{2}60{}^\circ }{2\text{g}}=15\text{ m} $
