Two objects of the same mass are thrown in the vertically upward direction with the samevelocity , one on the surface of the earth and other on the surface of the moon. Find ( i ) ratio of maximum heights attained by the objects (ii) ratio of time taken by the objects to attain their maximum heights
Answers
Answer:
ANSWER
Maximum height attained H=
g
u
2 which is independent of mass of ball.
where u is the velocity by which the ball is thrown vertically upward.
Using equation of motion for downward direction, v
2
−0=2gH
v
2
=2g
2g
u
2
⟹v=u (downward)
Velocity of the object thrown vertically upward is equal (but in opposite direction) at the two points which lie on same horizontal level.
Thus the two balls which are thrown upward with the same speed will have same speed at the point which passes through the point of projection in downward direction.
Hence the Assertion and the Reason are correct and the reason is the correct explanation for Assertion.
Answer:
A compound could be optically active only when it contains atleast one asymmetric carbon atom or chiral centre.O