1
JEE Main 2017 (Online) 8th April Morning Slot
+4
-1
Which graph corresponds to an object moving with a constant negative acceleration and a positive velocity ?
A
B
C
D
2
JEE Main 2017 (Offline)
+4
-1
A body is thrown vertically upwards. Which one of the following graphs correctly represent the velocity vs time?
A
B
C
D
3
JEE Main 2015 (Offline)
+4
-1
Two stones are thrown up simultaneously from the edge of a cliff $$240$$ $$m$$ high with initial speed of $$10$$ $$m/s$$ and $$40$$ $$m/s$$ respectively. Which of the following graph best represents the time variation of relative position of the second stone with respect to the first ?

(Assume stones do not rebound after hitting the ground and neglect air resistance, take $$g = 10m/{s^2}$$)

(The figures are schematic and not drawn to scale)
A
B
C
D
4
JEE Main 2014 (Offline)
+4
-1
From a tower of height H, a particle is thrown vertically upwards with a speed u. The time taken by the particle, to hit the ground, is n times that taken by it to reach the highest point of its path. The relation between H, u and n is:
A
2gH = n2u2
B
gH = (n - 2)2u2
C
2gH = nu2(n - 2)
D
gH = (n - 2)u2
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