1
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
A planet moving along an elliptical orbit is closest to the sun at a distance r1 and farthest away at a distance of r2. If $$v$$1 and $$v$$2 are the linear velocities at these points respectively, then the ratio $${{{v_1}} \over {{v_2}}}$$ is
A
(r1 /r2)2
B
r2/r1
C
(r2/r1)2
D
r1/r2
2
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
A boy standing at the top of a tower of 20 m height drops a stone. Assuming g = 10 m s$$-$$2, the velocity with which it hits the ground is
A
10.0 m/s
B
20.0 m/s
C
40.0 m/s
D
5.0 m/s
3
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
A person of mass 60 kg is inside a lift of mass 940 kg and presses the button on control panel. The lift starts moving upwards with an acceleration 1.0 m/s2. If g = 10 ms$$-$$2, the tension in the supporting cable is
A
8600 N
B
9680 N
C
11000 N
D
1200 N
4
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
A missile is fired for maximum range with an initial velocity of 20 m/s. If g = 10 m/s2, the range of the missile is
A
40 m
B
50 m
C
60 m
D
20 m