Kinematics Question 224
Question: A body, thrown upwards with some velocity, reaches the maximum height of 20m. Another body with double the mass thrown up, with double initial velocity will reach a maximum height of [KCET 2001]
Options:
A) 200 m
B) 16 m
C) 80 m
D) 40 m
Show Answer
Answer:
Correct Answer: C
Solution:
Mass does not affect on maximum height. $ H=\frac{u^{2}}{2g}\Rightarrow H\propto u^{2} $ , So if velocity is doubled then height will become four times. i.e. $ H=20\times 4=80m $
