1
AIPMT 2010 Prelims
+4
-1
The radii of circular orbits of two satellites A and B of the earth, are 4R and R, respectively. If the speed of satellite A is 3V, then the speed of satellite B will be
A
$${{3V} \over 4}$$
B
6$$V$$
C
12$$V$$
D
$${{3V} \over 2}$$
2
AIPMT 2010 Prelims
+4
-1
A man of 50 kg mass is standing in a gravity free space at a height of 10 m above the floor. He throws a stone of 0.5 kg mass downwards with a speed 2 m/s. When the stone reaches the floor, the distance of the man above the floor will be
A
9.9 m
B
10.1 m
C
10 m
D
20 m
3
AIPMT 2009
+4
-1
The figure shows elliptical orbit of a planet m about the sun S. The shaded area SCD is twice the shaded area SAB. If t1 is the time for the planet to move from C to D and t2 is the time to move from A to B then

A
t1 = 4t2
B
t1 = 2t2
C
t1 = t2
D
t1 > t2
4
AIPMT 2007
+4
-1
Two satellites of earth, S1 and S2 are moving in the same orbit. The mass of S1 is four times the mass of S2. Which one of the following statements is true ?
A
The potential energies of earth and satellite in the two cases are equal.
B
S1 and S2 are moving with the same speed.
C
The kinetic energies of the two satellites are equal.
D
The time period of S1 is four times that of S2.
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