1
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
A particle moves in a circle of radius 5 cm with constant speed and time period 0.2$$\pi $$ s. The acceleration of the particle is
A
15 m/s2
B
25 m/s2
C
36 m/s2
D
5 m/s2
2
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
A body is moving with velocity 30 m/s towards east . After 10 seconds its velocity becomes 40 m/s towards north. The average acceleration of the body is
A
1 m/s2
B
7 m/s2
C
$$\sqrt 7 $$ m/s2
D
5 m/s2
3
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Force F on a particle moving in a straight line varies with distance d as shown in figure.

AIPMT 2011 Prelims Physics - Work, Energy and Power Question 38 English
The work done on the particle during its displacement of 12 m is
A
18 J
B
21 J
C
26 J
D
13 J
4
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
A body projected vertically from the earth reaches a height equal to earth's radius before returning to the earth. The power exerted by the gravitational force is greatest
A
at the highest position of the body
B
at the instant just before the body hits the earth.
C
it remains constant all through.
D
at the instant just after the body is projected.