1
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
With what velocity should a particle be projected so that its height becomes equal to radius of earth?
A
$${\left( {{{GM} \over R}} \right)^{1/2}}$$
B
$${\left( {{{8GM} \over R}} \right)^{1/2}}$$
C
$${\left( {{{2GM} \over R}} \right)^{1/2}}$$
D
$${\left( {{{4GM} \over R}} \right)^{1/2}}$$
2
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
A particle is thrown vertically upward. Its velocity at half of the height is 10 m/s, then the maximum height attained by it (g = 10 m/s2)
A
8 m
B
20 m
C
10 m
D
16 m
3
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
A cricketer catches a ball of mass 150 gm in 0.1 sec moving with speed 20 m/s, then he experiences force of
A
300 N
B
30 N
C
3 N
D
0.3 N.
4
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
A 1 kg stationary bomb is exploted in three parts having mass 1 : 1 : 3 respectively. Parts having same mass move in perpendicular direction with velocity 30 m/s, then the velocity of bigger part will be
A
$$10\sqrt 2 $$ m/sec
B
$${{10} \over {\sqrt 2 }}$$ m/sec
C
$$15\sqrt 2 $$ m/sec
D
$${{15} \over {\sqrt 2 }}$$ m/sec