1
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
An object of mass 3 kg is at rest. Now a force of $$\overrightarrow F $$ = 6t2 $$\widehat i$$ + 4t $$\widehat j$$ is applied on the object then velocity of object at t = 3 sec. is
A
18$$\widehat i$$ + 3$$\widehat j$$
B
18$$\widehat i$$ + 6$$\widehat j$$
C
3$$\widehat i$$ + 18$$\widehat j$$
D
18$$\widehat i$$ + 4$$\widehat j$$
2
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
A lift of mass 1000 kg which is moving with acceleration of 1 m/s2 in upward direction, then the tension developed in string which is connected to lift is
A
9800 N
B
10,800 N
C
11,000 N
D
10,000 N.
3
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
A block of mass 10 kg placed on rough horizontal surface having coefficient of friction m = 0.5, if a horizontal force of 100 N acting on it then acceleration of the block will be
A
10 m/s2
B
5 m/s2
C
15 m/s2
D
0.5 m/s2.
4
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
If kinetic energy of a body is increased by 300% then percentage change in momentum will be :
A
100%
B
150%
C
265%
D
73.2%
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