1
IIT-JEE 1984
True or False
+2
-0
A projectile fired from the ground follows a parabolic path. The speed of the projectile is minimum at the top of its path.
A
TRUE
B
FALSE
2
IIT-JEE 1984
Fill in the Blanks
+2
-0
A block of mass 1 kg lies on a horizontal surface in a truck. The coefficient of static friction between the block and the surface is 0.6. If the acceleration of the truck is 5 m/s2, the frictional force acting on the block is _________ newtons.
3
IIT-JEE 1984
True or False
+2
-0
A simple pendulum with a bob of mass m swings with an angular amplitude of $$40^\circ $$. When its angular displacement is $$20^\circ $$, the tension in the string is greater than mg cos$$20^\circ $$.
A
TRUE
B
FALSE
4
IIT-JEE 1984
MCQ (More than One Correct Answer)
+2
-0.5
A body is moved along a straight line by a machine delivering constant power. The distance moved by the body in the time t is proportional to
A
t1/2
B
t3/4
C
t3/2
D
t2
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