1
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
A particle of mass m is released from rest and follows a parabolic path as shown. Assuming that the displacement of the mass from the origin is small, which graph correctly depicts the position of the particle as a function of time ?

AIPMT 2011 Prelims Physics - Work, Energy and Power Question 39 English
A
AIPMT 2011 Prelims Physics - Work, Energy and Power Question 39 English Option 1
B
AIPMT 2011 Prelims Physics - Work, Energy and Power Question 39 English Option 2
C
AIPMT 2011 Prelims Physics - Work, Energy and Power Question 39 English Option 3
D
AIPMT 2011 Prelims Physics - Work, Energy and Power Question 39 English Option 4
2
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.
3
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
The instantaneous angular position of a point on a rotating wheel is given by the equation $$\theta \left( t \right) = 2{t^3} - 6{t^2}$$

The torque on the wheel becomes zero at
A
t = 1 s
B
t = 0.5 s
C
t = 0.25 s
D
t = 2 s
4
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Out of the following functions representing motion of a particle which represents SHM
(1)  y = sin$$\omega $$t $$-$$ cos$$\omega $$t
(2)  y = sin3$$\omega $$t
(3)  y = 5cos$$\left( {{{3\pi } \over 4} - 3\omega t} \right)$$
(4)  y = 1 + $$\omega $$t + $$\omega $$2t2
A
Only (1)
B
Only (4) does not represent SHM
C
Only (1) and (3)
D
Only (1) and (2)