1
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Change Language
A particle of mass m is driven by a machine that delivers a constant power k watts. If the particle starts from rest the force on the particle at time t is
A
$$\sqrt {2mk} {\,t^{ - 1/2}}$$
B
$${1 \over 2}\sqrt {mk} \,{t^{ - 1/2}}$$
C
$$\sqrt {{{mk} \over 2}} \,{t^{ - 1/2}}$$
D
$$\sqrt {mk} \,{t^{ - 1/2}}$$
2
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Change Language
A block of mass 10 kg, moving in x direction with a constant speed of 10 m s$$-$$1, is subjected to a retarding force F = 0.1x J/m during its travel from x = 20 m to 30 m. Its final KE will be
A
275 J
B
250 J
C
475 J
D
450 J
3
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
Change Language
One coolie takes 1 minute to raise a suitcase through a height of 2 m but the second coolie takes 30 s to raise the same suitcase to the same height. The powers of two coolies are in the ratio
A
1 : 3
B
2 : 1
C
3 : 1
D
1 : 2
4
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
Change Language
A particle with total energy E is moving in a potential energy region U(x). Motion of the particle is restricted to the region when
A
U(x) < E
B
U(x) = 0
C
U(x) $$ \le $$ E
D
U(x) > E
NEET Subjects
EXAM MAP