1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
If a ball is thrown vertically upwards with speed u, the distance covered during the last t seconds of its ascent is
A
ut
B
$${1 \over 2}$$ gt2
C
ut $$-$$ $${1 \over 2}$$ gt2
D
(u + gt) t.
2
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
The vector sum of two forces is perpendicular to their vector differences. In that case, the forces
A
are equal to each other
B
are equal to each other in magnitude
C
are not equal to each other in magnitude
D
cannot be predicted.
3
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
A particle moves along a circle of radius $$\left( {{{20} \over \pi }} \right)$$ m with constants tangential acceleration. If the velocity of vthe particle is 80 m/s at the end of the second revoluation after motion has begun, the tangential acceleration is
A
40 m/s2
B
640$$\pi $$ m/s2
C
160$$\pi $$ m/s2
D
40$$\pi $$ m/s2
4
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
A man weight 80 kg. He stands on a weighting scale in a lift which is moving upwards with a uniform acceleration of 5 m/s2. What would be the reading on the scale ? (g = 10 m/s2)
A
zero
B
400 N
C
800 N
D
1200 N
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