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
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
3
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
A monkey of mass 20 kg is holding a vertical rope. The rope will not break when a mass of 25 kg is suspended from it but will break if the mass exceeds 25 kg. What is the maximum acceleration with which the monkey can climb up along the rope ? (g = 10 m/s2)
A
5 m/s2
B
10 m/s2
C
25 m/s2
D
2.5 m/s2
4
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.