1
IIT-JEE 2008 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1

A small block of mass M moves on a frictionless surface of an inclined plane, as shown in figure. The angle of the incline suddenly changes from 60$$^\circ$$ to 30$$^\circ$$ at point B. The block is initially at rest at A. Assume that collisions between the block and the incline are totally inelastic (g = 10 m/s$$^2$$).

IIT-JEE 2008 Paper 1 Offline Physics - Laws of Motion Question 4 English Comprehension

The speed of the block at point C, immediately before it leaves the second incline is

A
$$\sqrt{120}$$ m/s
B
$$\sqrt{105}$$ m/s
C
$$\sqrt{90}$$ m/s
D
$$\sqrt{75}$$ m/s
2
IIT-JEE 2007 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-1
A particle moves in the X - Y plane under the influence of a force such that its linear momentum is $$\overrightarrow p \left( t \right) = A\left[ {\widehat i\cos (kt) - \widehat j\sin (kt)} \right]$$, where A and k are constants. The angle between the force and the momentum is
A
$$0^\circ $$
B
$$30^\circ $$
C
$$45^\circ $$
D
$$90^\circ $$
3
IIT-JEE 2007 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-1

STATEMENT 1

A cloth covers a table. Some dishes are kept on it. The cloth can be pulled out without dislodging the dishes from the table.

Because

STATEMENT 2

For every action there is an equal and opposite reaction.

A
Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
B
Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1s.
C
Statement-1 is True, Statement-2 is False.
D
Statement-1 is False, Statement-2 is True.
4
IIT-JEE 2001 Screening
MCQ (Single Correct Answer)
+2
-0.5
The pulleys and strings shown in the figure are smooth and of negligible mass. For the system to remain in equilibrium, the angle $$\theta $$ should be IIT-JEE 2001 Screening Physics - Laws of Motion Question 19 English
A
$$0^\circ $$
B
$$30^\circ $$
C
$$45^\circ $$
D
$$60^\circ $$
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