1
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
250 N force is required to raise 75 kg mass from a pulley. If rope is pulled 12 m then the load is lifted to 3 m. the efficiency of pulley system will be
A
25%
B
33.3%
C
75%
D
90%
2
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
On the horizontal surface of a truck a block of mass 1 kg is placed (m = 0.6) and truck is moving with acceleration 5 m/sec2 then the frictional force on the block will be
A
5 N
B
6 N
C
5.88 N
D
8 N
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
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