1
IIT-JEE 2004 Screening
+2
-0.5
A particle starts sliding down a frictionless inclined plane. If Sn is the distance traveled by it from time t = n - 1 sec to t = n sec, the ratio Sn / Sn+1 is
A
$${{2n - 1} \over {2n + 1}}$$
B
$${{2n + 1} \over {2n}}$$
C
$${{2n} \over {2n + 1}}$$
D
$${{2n + 1} \over {2n - 1}}$$
2
IIT-JEE 2004 Screening
+2
-0.5
A body starts from rest at time t = 0, the acceleration time graph is shown in the figure. The maximum velocity attained by the body will be
A
110 m/s
B
55 m/s
C
650 m/s
D
550 m/s
3
IIT-JEE 1988
+1
-0.25
A boat which has a speed of 5 km/hr in still water crosses a river of width 1 km along the shortest possible path in 15 minutes. The velocity of the river water in km/hr is
A
1
B
3
C
4
D
$$\sqrt {41}$$
4
IIT-JEE 1983
+1
-0.25
A river is flowing from west to east at a speed of 5 meters per minute. A man on the south bank of the river, capable of swimming at 10 meters per minute in still water, wants to swim across the river in the shortest time. He should swim in a direction
A
due north
B
$$30^\circ$$ east of north
C
$$30^\circ$$ west of north
D
$$60^\circ$$ east of north
EXAM MAP
Medical
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