1
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
A body of mass $$' m ',$$ acceleration uniformly from rest to $$'{v_1}'$$ in time $${T}$$. The instantaneous power delivered to the body as a function of time is given by
A
$${{m{v_1}{t^2}} \over {{T}}}$$
B
$${{mv_1^2t} \over {T^2}}$$
C
$${{m{v_1}t} \over {{T}}}$$
D
$${{mv_1^2t} \over {{T}}}$$
2
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
A wire suspended vertically from one of its ends is stretched by attaching a weight of $$200N$$ to the lower end. The weight stretches the wire by $$1$$ $$mm.$$ Then the elastic energy stored in the wire is
A
$$0.2$$ $$J$$
B
$$10$$ $$J$$
C
$$20$$ $$J$$
D
$$0.1$$ $$J$$
3
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
A spring of spring constant $$5 \times {10^3}\,N/m$$ is stretched initially by $$5$$ $$cm$$ from the unstretched position. Then the work required to stretch it further by another $$5$$ $$cm$$ is
A
$$12.50$$ $$N$$-$$m$$
B
$$18.75$$ $$N$$-$$m$$
C
$$25.00$$ $$N$$-$$m$$
D
$$625$$ $$N$$-$$m$$
4
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
A body is moved along a straight line by a machine delivering a constant power. The distance moved by the body in time $$'t'$$ is proportional to
A
$${t^{3/4}}$$
B
$${t^{3/2}}$$
C
$${t^{1/4}}$$
D
$${t^{1/2}}$$
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