PhysicsThe displacement-time graph for two particles A and B are straight lines inclined at angles of 30o and 60o with the time axis. The ratio of their velocities is
The displacement-time graph for two particles A and B are straight lines inclined at angles of 30o and 60o with the time axis. The ratio of their velocities is
A
1:2
B
1:√3
C
√3:1
D
1:3
Solution:
The displacement-time graph for two particles A and B are straight lines inclined at angles of
30o
and
60o
with the time axis. The ratio of their velocities is
1:3
.
Let
vA
and
vB
be the velocity of particles A and B respectively.
So
vA:vB=SlopeA:SlopeB
Also,
SlopeA:SlopeB=tan30°:tan60=>vA:vB=tan30°:tan60°=>vA:vB=1√3:√3=>vA:vB=1:3
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