1
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
The dimension of $${1 \over 2}{\varepsilon _0}{E^2}$$, where $${\varepsilon _0}$$ is permittivity of free space and E is electric field, is
A
ML2T$$-$$2
B
ML$$-$$1T$$-$$2
C
ML2T$$-$$1
D
MLT$$-$$1
2
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
A particle moves a distance x in time t according to equation x = (t + 5)$$-$$1. The acceleration of particle is proportional to
A
(velocity)3/2
B
(distance)2
C
(distance)$$-$$2
D
(velocity)2/3
3
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
A ball is dropped from a high rise platform at t = 0 starting from rest. After 6 seconds another ball is thrown downwards from the same platform with a speed v. The two balls meet at t = 18 s. What is the value of v?
(Take g = 10 m/s2)
A
75 m/s
B
55 m/s
C
40 m/s
D
60 m/s
4
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
A particle has initial velocity $$\left( {3\widehat i + 4\widehat j} \right)$$ and has acceleration $$\left( {0.4\widehat j + 0.3\widehat j} \right).$$ Its speed after 10 s is
A
7 units
B
$$7\sqrt 2 $$ units
C
8.5 units
D
10 units
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