1
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
If $$\overrightarrow F = \left( {60\widehat i + 15\widehat j - 3\widehat k} \right)$$ N and $$\overrightarrow v = \left( {2\widehat i - 4\widehat j + 5\widehat k} \right)$$ m/s, then instantaneous power is
A
195 watt
B
45 watt
C
75 watt
D
100 watt.
2
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
A mass of 1 kg is thrown up with a velocity of 100 m/s. After 5 seconds, it explodes into two parts. One part of mass 400 g comes down with a velocity 25 m/s. The velocity of other part is (Take g = 10 ms$$-$$2)
A
40 m/s
B
50 m/s
C
100 m/s
D
60 m/s
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