1
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
The co-ordinates of a moving particle at any time 't' are given by x = $$\alpha $$t3 and y = βt3. The speed to the particle at time 't' is given by
A
$$3t\sqrt {{\alpha ^2} + {\beta ^2}} $$
B
$$3{t^2}\sqrt {{\alpha ^2} + {\beta ^2}} $$
C
$${t^2}\sqrt {{\alpha ^2} + {\beta ^2}} $$
D
$$\sqrt {{\alpha ^2} + {\beta ^2}} $$
2
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
A spring balance is attached to the ceiling of a lift. A man hangs his bag on the spring and the spring reads $$49$$ $$N,$$ when the lift is stationary. If the lift moves downward with an acceleration of $$5 m/{s^2}$$, the reading of the spring balance will be
A
$$24$$ $$N$$
B
$$74$$ $$N$$
C
$$15$$ $$N$$
D
$$49$$ $$N$$
3
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
A light spring balance hangs from the hook of the other light spring balance and a block of mass $$M$$ $$kg$$ hangs from the former one. Then the true statement about the scale reading is
A
Both the scales read $$M$$ $$kg$$ each
B
The scale of the lower one reads $$M$$ $$kg$$ and of the upper one zero
C
The reading of the two scales can be anything but the sum of the reading will be $$M$$ $$kg$$
D
Both the scales read $$M/2$$ $$kg$$ each
4
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
A marble block of mass $$2$$ $$kg$$ lying on ice when given a velocity of $$6$$ $$m/s$$ is stopped by friction in $$10$$ $$s.$$ Then the coefficient of friction is
A
$$0.02$$
B
$$0.03$$
C
$$0.04$$
D
$$0.06$$
JEE Main Papers
2023
2021
EXAM MAP